A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations. I hope this help you
Answer:
i sai sai
Explanation:
sia sia sai In a running relay, each runner ran an equal part of the total distance. Joseph and 3 othe
Ms. Jones is teaching her class about rocks and minerals. She holds up a rainbow chocolate chip cookie and explains that the cookie is like a rock. Next, she points to the different colored chocolate chips. What do the chocolate chips represent? A) fossils B) gems C) minerals D) rocks
Answer:
The answer would be C) Minerals. I hope this helps!
Answer:
The Answer is (C) Hope you Ace it
Explanation:
Which pair of minerals play a key role in heart function, muscle function, and nerve impulse?
A. Sodium and calcium
B. Calcium and potassium
C. Iron and calcium
D. Sodium and potassium
Answer: Sodium and potassium
Explanation: The process by which the sodium and potassium ions moves across the membrane to generate the membrane potential which helps in the signal transduction.
This process is important for a variety of reasons, the movement of ions across membranes generates membrane potential which helps in the transmitting the signals for the relaxation of the muscles which includes heart muscle and muscles of various parts pf the body.
It maintains a balance in the body and if there is any problem in the muscles or cardiac contractions sodium potassium pump is responsible for it.
Why are marine oceanographers particularly concerned with coastal regions?
O
A. Coastal regions are highly impacted by human activity.
O
B. Previous studies in marine science have largely ignored them.
O
C. They are the only areas that marine oceanographers can access.
O
D. By definition, marine oceanographers are only concerned with the coast.
Answer:
A. Coastal regions are highly impacted by human activity
Explanation:
Since I'm not completely sure I will debunk the others and let you decide.
-Option D- says they are ONLY concerned with the coast. KEY WORD only. Oceanographers study the ocean and not just the coast.
-Option C- also not true, the coast is probably the easiest portion to access but growing technologies and inventions like submarines made the ocean easier to study.
-Option B- I'm not sure of this one. I would think previous studies would start with the coast because it's the easiest to access
-Option A- Man-made beaches, water pollution, shoreline erosion. changing an organisms environment disrupts the ecosystem and human activities cause a significant decline in coastal habitats. i think this is the answer
Answer: The correct answer is A. Coastal regions are highly impacted by human activity.
Explanation:
Human activity near coastal regions includes the use of inlets, beach bed changes, dredging of waterways, commercial shipping, recreational boating, land development, hotels, houses, and industrial plants. All of this activity is highly disruptive, risky, and impactful to the inhabitants of the local ecosystems.
Compare and contrast DNA and RNA. After the comparison, describe the entire process of DNA replication. You must include all of the steps. (Ex. Transcription-Translation-and-Replication)
98 points and will give brainliest
Answer:
The steps of DNA replication always begin by separating a twisted strand into two untwisted molecular strands. It happens in the specific area of a chromosome known as the “origins". The origins contain a series of codes that attract the helicase, a protein that aids in the separation of the strands. Once the helicase locates the origins, it sends out signals inside the cell for other replication initiator proteins to help out in the separation. DNA strands are being separated by breaking the hydrogen bonds between the nucleotide base pairs, such as those of adenine (A) and thymine (T), and guanine (G) and cytosine (C).
Step 2: Replication Fork Formation
Splitting the original double helix into two strands visually presents a Y-shaped formation known as the replication fork. Each prong appears as an elongated line that requires an identical half to match in order to form a new pair of strands. One of the separated strands is called the leading strand, which is constantly utilized for DNA synthesis while the lagging strand is responsible for the complimentary strand’s synthesis.
Step 3: Binding of Bases to Each Strand
Both leading strand and lagging strand already has base patterns from the start and it serves as the template for the corresponding strands. For each strand, the bases match with the free floating nucleotides present inside the cell following the nucleotide base pairing rules to establish the hydrogen bonding between a separated strand and a new matching strand. It is made possible by the DNA polymerase, an enzyme that functions like a sewing machine in matching and zipping both strands together.
The replication process does not result to a brand new chain of DNA. It is always a mixture of both the original strand that is conserved as a partner all throughout the continuous steps of DNA replication process and the recently made strand. This process is recognized as the semiconservative replication.
Step 4: The Termination of the Replication Process
The termination process occurs as soon as the DNA polymerase enzyme arrived at the edge of the strands where no more possible replication could occur. But before the process is completed, it goes through the process of repair to correct errors such as mismatching of nucleotides. After this step, the DNA replication is completed.
Explanation:
In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. This process occurs in all living organisms and is the basis for biological inheritance.
Ribonucleic acid (RNA) is a polymeric molecule implicated in various biological roles in coding, decoding, regulation, and expression of genes. RNA and DNA are nucleic acids, and, along with proteins and carbohydrates, constitute the three major macromolecules essential for all known forms of life
15. A geologist discovers a sample of fine-grained rock made up of very small crystals. Based on its physical appearance, what can the geologist conclude about the rock?
Answer:
It is an extrusive igneous rock
Explanation:
Based on the physical appearance, the geologist can make an accurate conclusion about the rock's formation and in which type of rocks does it belong. The fine-grains made up of small crystals give away clues about the formation of the rock. Fine grains with small structures occur when the lava reaches the surface and cools off very quickly, thus not giving the crystals enough time to grow, so they are very small. The geologist can classify this rock on base of this information as an igneous rock, as it has been formed from lava, and as an extrusive igneous rock, as the fine grains and small crystals only occur when the lava cools of quickly on the surface.
Answer:
It formed from rock that cooled quickly
Explanation:
B.
A bird species that lives in only one swamp has a beak designed only for cracking snail shells. The birds depend on the snails for food.
What will most likely happen to the bird species if the swamp suddenly dries up, killing off the snails?
The bird could become extinct but may also migrate to another area where it can find food (snails).
1. What is the depth of the coldest ocean layer?
Answer:
35,797 feet
Explanation:
The deepest point in the ocean is located in the Mariana Trench off the coast of Japan at 35,797 feet (10,911 meters). The temperature of the water is just above freezing, and the pressure is an incredible eight tons per square inch.
Which of the following should be included in a good conclusion?
A. An interesting anecdote about the experimental procedure
B. An attempt to refute any potential criticism
C. Experimental data that support the conclusion
D. Thoughts about why certain avoidable errors were made
C. Experimental data that support the conclusion
A good conclusion is defined when experimental data support the conclusion of any hypothesis because it does not cause any change in the hypothesis, hence option c is correct.
What is a good conclusion?A conclusion is formed using the information gathered during an investigation and its repeats. The hypothesis may well be supported by the data or not.
After reading the article, the reader is supposed to understand from the conclusion why your research should be important to them. The final paragraph of a research paper, essay, or article that summarizes the whole work is the conclusion.
The conclusion paragraph should repeat your thesis, identify the important points you made in support of it throughout the paper, and provide your evaluation of the main concept.
Therefore experimental data support the hypothesis and lead to a good conclusion, hence option c is correct.
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What is a hominid ?
Answer:
a primate of a family ( Hominidae ) that includes humans and their fossil ancestors and also (in recent systems) at least some of the great apes.
Explanation:
Human-like animals that walked upright were known as hominids. These include great apes for example!
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Explain how carbon cycles between living and non living things
Answer:
it is burned by fossil fules (non-living parts) then the trees soak it up and plants then the animals eat it (living part).
Explanation:
The carbon cycle involves moving carbon among living and nonliving entities. It involves a biological cycle where carbon moves between plants and animals through photosynthesis, consumption, and respiration, and a slower biogeochemical cycle where carbon gets stored in various carbon reservoirs like atmosphere, oceans, soil, rocks, and earth's interior.
Explanation:The carbon cycle is a key part of our planet's biosphere that involves the movement of carbon among living and nonliving parts of the world. It's essentially divided into two interconnected sub-cycles: the biological carbon cycle and the biogeochemical carbon cycle.
In the biological carbon cycle, living organisms are deeply connected in this process. Carbon moves between autotrophs and heterotrophs via atmospheric carbon dioxide. Autotrophs use energy from the sun to convert carbon dioxide into glucose, a high-energy compound. This process also produces oxygen as a byproduct, which then enters the atmosphere. On the other hand, heterotrophs, including most animals, consume these high-energy compounds, releasing the carbon back into the atmosphere as carbon dioxide through respiration.
Next, in the biogeochemical carbon cycle, the movement of carbon through the land, water, and air is more complex and occurs much more slowly. Carbon is stored for long periods in carbon reservoirs such as the atmosphere, oceans, soil, rocks, and Earth's interior, creating a constant exchange of carbon among different components of the environment.
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which of these bones is part of the axial skeleton
Hello. This question is incomplete. The full question is:
"Which of these bones is part of the axial skeleton
A. Ulna B.fibula C.vertebra D.phalanges "
Answer:
C.vertebra
Explanation:
The axial skeleton is made up of bones that are close to the central axis of the body. In an adult this skeleton is formed by 80 bones that includes bones that form the cranium, the spine, the ribs and the sternum.
It is in the spine that we find the vertebrae. With this we can say that among the bones shown in the question above, the one that is part of the axial skeleton is the vertebra.
In the spine we find the following vertebrae:
Cervical vertebrae Thoracic Vertebrae Lumbar Vertebrae Sacral bone containing five fused vertebrae; The coccyx bone containing four to five vertebrae, also fused.The Axial Skeleton consists of the bones of the head, vertebral column, the rib cage and the sternum. Hence, a bone part of this section would have to be from one these areas.
Explanation:The Axial Skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In humans, it consists of 80 bones and includes the skull, vertebral column, rib cage and the sternum. Therefore, if you're considering a bone to be a part of the axial skeleton, it would have to belong to either the head, vertebral column or the rib cage.
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PLEASE PLEASE I’m really desperate I need a good grade!!answer the question
At one point in time all the continents were connected together called Pangea. Over the years Pangea was separating and making continents and if you put the continents
What is the anion found in phosphoric acid?
A. PO3-
B. PO,3-
C. PO 3-
D. PO 3-
PO4 -3 is actually the answer
Answer:
Phosphate ion[tex]PO_4^{3-}[/tex] is the anion found in phosphoric acid
Explanation:
The formula of phosphoric acid is[tex]H_3PO_4[/tex].It is is a weak acid.
It is formed by three molecules of hydrogen atoms combine with one molecule of phosphate ion.
The molecular formula of phosphate ion is [tex]PO_4^{3-}[/tex]
[tex]3H^++PO_4^{3-}\rightarrow H_3PO_4[/tex]
Phosphate ion is the anion found in phosphoric acid
Which label in the above diagram represents a stoma
Answer:
stoma can be a mouth, a nose, and an anus are natural stomata.
Explanation:
there no diagram but hope this helps!
Before United States citizens travel to Africa, a(n) _____ for yellow fever is required.
Answer:
Vaccine
Explanation:
I'm not sure but it seems like the most logical answer.
Answer:
The correct answer is immunization or vaccination.
Explanation:
Immunization is the method of developing immunity or resistant to a particular infectious disease, generally by shots or vaccines. Vaccines trigger the immune system of an individual to prevent the person against that infectious disease or pathogen.
The vaccine for yellow fever is the weakened form of the virus provided to the individual in a single shot. It can be given to people travel to yellow fever prone areas such as Africa.
Thus, the correct answer is immunization or vaccination.
Why are these fewest species of silversword on hawaii
Answer:
The spiny plant from the volcanic Hawaiian highlands may not survive the ravages of climate change.
Hope this helps :)
Which could describe the motion of an object?
Answer:
Distance=10 meters and displacement=10 meters
Explanation:
Did the quiz
When an object is moving, it has a velocity, which includes both speed and direction.
The simplest motion to describe is one-dimensional motion, such as a train on a straight track. Knowing the object's position as a function of time is crucial for understanding its motion.
When an object is moving, it has a velocity. Velocity is the rate of change of the position of an object. It includes both the speed of the object and the direction in which it is moving. In contrast, speed describes only how fast an object is moving, not the direction. For instance, a car traveling north at 60 km/h has a different velocity than the same car traveling south at 60 km/h, even though the speed is the same in both cases. The simplest motion to describe is one-dimensional motion, like a train moving along a straight track. To accurately describe this motion, we need to know the object's position as a function of time, labeled as x(t). Understanding concepts like kinematics is essential for accurately analyzing motion in physics.
Some statistics show that people who are more educated have fewer children. Which of the following could possibly explain this phenomenon?
A. People who are more educated tend to get married later and have children later.
B. Educated people do not like children.
C.
Educated people don't have enough money to care for a lot of children,
D.
The statistics are wrong, there is no relationship between education and offspring
What is the function of mitosis in an organism like a human?
Answer:
Its important for reproduction.
Explanation:
As a form of cell division, mitosis is really important because it produces two exact copies of the original cell, and those two daughter cells are used for reproduction.
Answer:
1. genetic consistency. that is ecause all cells formed by mitosis are genetically identical thus they contain the same dna and in each tissue the new cells perform the function that they are responsible for.
2. growth
3.repear
Which of the following is a wheel and axle most closely related to (A) lever (B) wedge (C) pulley (D) inclined plane
Answer:
I wanna say pulley
Explanation:
I say pulley
c is right
Explanation: :()
if an organism's diploid number is 12, its haploid number is ___
The prefix di- (as seen in the word diploid) means that it is 2 (aka double) of haploid. All you have to do is divide 12 by 2
12/2 = 6
If an organism's diploid number is 12, its haploid number is 6
Hope this helped!
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What happens to the nitrogen excreted by animals?
a
Nitrogen is converted into ammonia.
b
Nitrogen is released back into the environment.
c
Nitrates are converted into proteins.
d
Nitrates are reabsorbed by the animal.
Answer:
Nitrgen Cycle
Explanation:
Animal waste includes nitrogen that passes through the nitrogen cycle, these steps summarise into:
The nitrogen cycle moves nitrogen back and forth between the atmosphere and organisms.
Bacteria change nitrogen gas from the atmosphere to nitrogen compounds that plants can absorb.
Other bacteria change nitrogen compounds back to nitrogen gas, which re-enters the atmosphere.
OPTION B. Nitrogen excreted by animals is released back into the environment, where microorganisms convert it to ammonia and subsequently into nitrates, which plants can then use to make proteins. Thus, the excreted nitrogen rejoins the nitrogen cycle.
Explanation:When animals excrete nitrogen, it is primarily in the form of urea or uric acid. These nitrogenous wastes are then released back into the environment. Bacteria and other microorganisms in the environment can convert these into ammonia. Ammonia is then converted into other compounds, such as nitrates, which can be used by plants to make proteins. Hence, the nitrogen excreted by animals enters back into the nitrogen cycle.
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Which statement best describes a typical difference that could be found between the “Analysis” and “Conclusion” sections of a lab report?
Answer:
im a child dont use this answer
Explanation:
YOUR WELCOME!!!!!!!!!!------honestly no one knows this c_r-a--p
Hello. This question is incomplete. The full question is:
"Which statement best describes a typical difference that could be found between the "Analysis" and "Conclusion" sections of a
lab report?
Only the "Conclusion" section describes errors that occurred during the experiment, and only the "Analysis" section suggests further research.
Only the "Analysis" section includes specific data comparisons, and only the "Conclusion" section suggests further research
Only the "Analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.
Only the "Conclusion" section discusses whether the original hypothesis was supported, and both sections suggest further research."
Answer:
Only the Conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.
Explanation:
In a laboratory report, the session called "analysis" is responsible for reading the research data and showing how that reading was performed in relation to how the experiment was conducted. This analysis will generate results that will be interpreted in the section called "conclusion". At the conclusion of a laboratory report, the results of the analysis are discussed and a final conclusion of the experiment is stipulated, where it is discussed whether the hypothesis that was being investigated is deferred by the results of the exoerimento or not.
What is characteristic of a mineral
The characteristics of minerals are..
-must be a solid
-must be naturally occurring
-formed by inorganic processes
-definite crystalline structure
-definite chemical composition
the answer is option 3 or C
What is the synthesis of proteins in an animal cell
Answer:
The building blocks of proteins are amino acids. - The sequences of nucleotides/bases in DNA provide a genetic code for the sequence of amino acid connections, which form protein molecules.
Explanation:
Final answer:
Protein synthesis in animal cells is a critical energy-consuming process where ribosomes translate mRNA messages into polypeptide chains that fold into functional proteins. These proteins contribute immensely to cellular structure and function. The process is highly regulated and involves the mRNA template, ribosomes, tRNAs, and enzymatic factors.
Explanation:
Protein synthesis is a crucial process in animal cells that consumes more energy than any other metabolic activity. Proteins are essential for the structure, function, and regulation of the body's tissues and organs, and therefore constitute a significant portion of cellular mass, second only to water. The translation process involves decoding an mRNA message into a polypeptide chain, which eventually folds into a functional protein. This assembly is facilitated by ribosomes, which catalyze the formation of peptide bonds between amino acids, resulting in polypeptide chains that can range in size from around 50 to over 1,000 amino acids. These polypeptides undergo post-translational modifications before becoming fully functional proteins capable of performing a plethora of cellular functions.
The machinery involved in protein synthesis includes not just the mRNA template but also ribosomes, transfer RNA (tRNA), and various enzymatic factors. Each amino acid added to the growing polypeptide chain is selected by tRNA molecules that match the corresponding codon on the mRNA. This ensures that the sequence of the resulting protein is exactly as encoded by the gene. The process is highly regulated at the transcriptional and translational levels, ensuring that proteins are synthesized as needed by the cell.
does a horse and dolphin have the most shared derived characteristics?
Answer:
no
Explanation:
because there Gene's are totally diffrent
Final answer:
Phylogenetic trees show that dolphins do not share the most derived characteristics with horses. Instead, they have a common ancestry with even-toed ungulates. The similar body shapes between dolphins and fish are an example of analogous traits due to convergent evolution.
Explanation:
In biology, phylogenetic trees are used to show the evolutionary relationships between different species. These relationships are determined through various evolutionary characteristics which can either be shared or derived. Regarding the relationship among different animals, let's address the questions raised by examining their evolutionary traits.
When considering the evolution of cetaceans, which includes dolphins, we observe that they have derived from even-toed ungulates and share a common ancestry with several other mammals including the hippopotamus, cow, sheep, camel, and pig. This common ancestry indicates that a horse, which is also an ungulate, is not the closest relative to a dolphin within this context. An armadillo would not fall on the same branch of the phylogenetic tree close to horses or cetaceans.
Comparing DNA sequences among animals, a whale would share more sequences with a horse than with a shark because whales and horses are both mammals; whereas, sharks are fish with a very different evolutionary history. Lastly, the similar body shape observed between dolphins and fish is an example of an analogous trait, since dolphins are mammals and fish are not, their similar body shapes have evolved independently due to convergent evolution within similar environments.
Is this individual male or female? How can you tell?
In biological terms, the sex of an individual is primarily determined by the X and Y chromosomes in mammals, with XX indicating a female and XY indicating a male. However, in some species, sex can change during one's lifetime. Gender identity can differ from biological sex, acknowledging the spectrum beyond male and female.
Explanation:The determination of whether an individual is male or female can largely be based on the X and Y chromosomes in mammals. Individuals homozygous for X (XX) are female and heterozygous individuals (XY) are male. The presence of a Y chromosome instigates the development of male traits and its absence results in female characteristics. This XY system is found in some insects and plants as well. However, it is important to remember that people often use the terms 'male' and 'female' to describe both our biological sex and our gender identity. For some, gender identity might be different from their biological sex or the sex they were assigned at birth. In these explanations, 'female' and 'male' refer strictly to biological sexes.
Furthermore, some species can change sex during their lifetime, alternating between male and female; this is known as protogyny (female first) or protandry (male first). Also, some creatures, such as certain types of snails, are hermaphrodites. When two individuals mate, they both can produce eggs, exhibiting characteristics of both sexes.
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Ben was studying the Irish Potato Famine and wanted to identify a critical factor for it. Which factor can Ben consider as critical for the Irish Potato Famine?
A.
too much rainfall
B.
too little rainfall
C.
lack of fertilization
D.
lack of genetic diversity in the potato plants
Answer:
D. lack of genetic diversity in the potato plants
Explanation:
The Irish Potato Famine occurred because of successive years of failed crops. The Irish became almost totally dependent on the potatoes as their primary food of source by the 18th century. This led to heavy dependence on this plant for the sheer survival of the population, which makes the population very vulnerable to famine, as the genetic diversity is too small, so a single disease can make enormous damage. That is exactly what happened, as the late blight managed to destroy the potato plants, leaving the country without its primary food source. The end result was large portion of the population dying because of starvation, lot of people were barely surviving, and lot of people migrated out of the country.
Final answer:
Ben should consider the lack of genetic diversity in Irish potato plants as the critical factor for the Irish Potato Famine, as this led to the susceptibility of the crop to potato blight, resulting in mass starvation and emigration.
Explanation:
The critical factor Ben can consider for the Irish Potato Famine is lack of genetic diversity in the potato plants. This lack of diversity made the single variety of potato grown in Ireland extremely susceptible to a disease known as potato blight, caused by the pathogen Phytophthora infestans. When the blight struck, it wiped out the entire potato crop, which was a staple food source for the Irish population at the time. The devastation led to mass starvation, with over one million deaths, and huge emigration, with nearly two million people leaving Ireland. This event highlights the significant risks associated with low crop diversity and the importance of breeding a variety of crops to maintain food security.
What are the weather events related to a occluded front?
Answer: In meteorology, an occluded front is a weather front formed during the process of cyclogenesis, when a cold front overtakes a warm front. When this occurs, the warm air is separated (occluded) from the cyclone center at the Earth's surface. i found this on Wikipedia if u want to find more
Explanation:
compare and contrast the two cycles of matter
Answer:
The two cycles of the matter are the carbon and nitrogen cycle. Both of them are biogeochemical cycles, it means that the chemicals spend a portion of the cycle in living things and non-living things. They are also common in that they both recycle nutrients that are essential to all organisms.
They are different in the manner that they cycle. Nitrogen is huge, 78% of the air around us is nitrogen. It cannot be used by plants or animals. Once the nitrogen is used by the plant and make its way to the animal, it can be released to decomposition.
Carbon has no requirement in processing by bacteria prior to plants and animals being able to use. Plants take carbon dioxide and make it sugar, animals eat the sugar. Some of it is released carbon dioxide that we exhale.
Answer:
The path of energy in an ecosystem is unidirectional, that is, it has a one-way path. On the other hand, matter circulates between the biotic environment and the abiotic environment, thanks to the presence of decomposers. This circulation of matter is called cycles of matter. These cycles are essential for the life and reproduction of living beings. They are natural processes that recycle chemical elements such as carbon, water, nitrogen, phosphorus, among other elements.
Below is a comparison between the carbon and nitrogen cycles.
Explanation:
Nitrogen: Nitrogen is an essential chemical element for life, it participates in protein molecules and also in the nitrogenous bases of nucleic acids. In its gaseous form (N2), it constitutes almost 80% of the atmospheric air, but it cannot be assimilated directly by the vast majority of living beings. Plants can absorb nitrogen in the form of ammonia or nitrates and animals take advantage of this element when they ingest proteins that contain it. Plants can obtain nitrates by two different methods: biological or direct fixation and nitrification.
Carbon: Organic compounds are those that have carbon in their composition. In the atmosphere, we find carbon in the form of carbon dioxide (CO2). Carbon dioxide is popularly known as carbon dioxide and it can pass from the abiotic medium to the biotic medium through the producers, through the process of photosynthesis. Photosynthesis uses six molecules of carbon dioxide to produce one molecule of glucose, so deforestation contributes to the accumulation of carbon dioxide in the atmosphere. Carbon can occupy different trophic levels along the food chains and returns to the abiotic environment through the breathing of living beings, in the form of CO2, and also through the decomposition of excreted substances and organisms that have died.
Burning fuels such as coal, firewood and petroleum products, such as gasoline, also releases carbon dioxide into the atmosphere. Some of the carbon does not return to the cycle, as it enters the composition of bones and shells, constituting the carbonates that decomposers are unable to modify. The assimilation and return of carbon to the abiotic environment are directly related to the energy flow of ecosystems. We can see from this that all cycles are related, to keep the biosphere in balance.