Answer:
macromolecule is created by small molecules called monomers.
What molecule controls the reaction rate of photosynthesis?
a.sugars
b.enzymes
c.fatty acids
d.nucleic acids
The answer is B enzymes because they speed up a reaction
Based on the weathering patterns you see,what rock type is most likely shown below?
The correct answer is - limestone.
On the image, it seems that we have a representation of rock formations in a cave. They are evidently weathering. According to the manifestation of the weathering, the color of the rocks, and that it is most probably a cave, the chances are mostly likely that it is a limestone.
The weathering appears as a result of the water. The limestone is a sedimentary type of rock, thus it doesn't have strong structure. The water is able to gradually penetrate through it, making holes in it, and little by little weather it. In this way we have the formation of the water reservoirs, springs, cave systems.
Answer:
Your answer is right it is limestone
Explanation:
The texture doesnt mach any other rock types.
states that all matter is evenly distributed throughout the universe, in the same amounts, moving in the same directions, and in the same ways
The phrase mentioned refers to the cosmological principle in physics, which asserts that the universe on a large scale is isotropic and homogeneous. It helps simplify models of the universe's expansion and is a base for theories on the universe's structure and dynamics. However, it remains an assumption and may not account for all possible micro variations.
Explanation:The statement you mentioned refers to the cosmological principle, a foundational assumption in the field of cosmology. This principle assumes that on a large scale, the universe is isotropic (the same in all directions) and homogeneous (having a consistent and even distribution of matter), which leads it to appear the same regardless of your observational vantage point. Having isotropic and homogeneous properties means the universe is smooth, as shown by various galaxy surveys.
This principle has played a significant role in the development of theories about the universe's structure and dynamics. For instance, it significantly simplifies models related to the universe's expansion. Concepts like Newton's laws and the law of conservation of matter do operate under this assumption, upholding the fact that the universe's behaviour can be predictable to an extent based on these laws.
Despite its broad acceptance, keep in mind that the cosmological principle is still an assumption and is subject to limitations. For instance, it does not account for small-scale local differences and potential uneven distribution of dark matter.
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Which nerve conveys information about taste from the tongue to the brain?
A. vagus
B. trigeminal
C. olfactory
D. trochlear
The correct answer is a. the vagus
The vagus nerve conveys information about taste from the tongue to the brain. It is primarily responsible for sensing taste in the back third of the tongue. Other nerves named have different functions.
Explanation:
The nerve that conveys information about taste from the tongue to the brain is A. vagus nerve. The vagus nerve is one of the cranial nerves that has a role in the sensation of taste, particularly for the back third of the tongue. It sends taste and sensory information back to the brain. Other cranial nerves like the trigeminal play a role in facial sensation and movement, while the olfactory nerve is involved in smell, and the trochlear nerve in eye movement.
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Which country has the largest forest areas?
A)
United States
B)
Brazil
C)
Canada
D)
China
E)
Argentina
The correct answer is - Canada.
Canada is the country that has the most forest area from the countries on this list. It is actually the second country in the world by forest area, with only Russia being in front of it. Canada has around 4,916,438 km² of forest. Brazil is very close to it, and it is in the third place globally, with the United States being placed as fourth, China as fifth, and Argentina as eight.
Canada's forests are stretching pretty much all over its southern half, creating a landscape of dense coniferous forests, and in certain areas of deciduous forests. Even Canada's flag has a leaf on it, more specifically a leaf of a maple tree.
Answer:
B) Brazil
Explanation:
Russia has the largest forest area but since it is not on this list, Brazil is the next largest.
In the human body a negative feedback loop is a type of self regulatory control of hormone reproduction
True or false ?
the answer is true....
a patients heart muscle fibers are relaxed and the heart is filling with blood. This phase is called what
The answer is diastole
In recent years, the controversy surrounding environmental issues has decreased.
Please select the best answer from the choices provided
Answer:
F.
Explanation:
If anything, the environmental issues have increased due to the depletion of the ozone layer. More car manufacturers are producing electric and fuel saving vehicles to answer the demands of the consumer.
In recent years, the controversy surrounding environmental issues has decreased. The given statement is false.
What are environmental issues?Environmental issues are the effects of human activity on the whole biophysical environment, which are most often of the harmful effects that can cause environmental degradation.
Some important environmental issues include clean water shortage, climate and climate change, energy, transportation, consumption, healthy living, land-use, and environmental justice.
In the recent years, due to increase in the population the controversy of surrounding environmental issues has been increased to many folds.
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Which even was most likely the cause of the changes in species diversity in the ecosystem
The large volcanic eruption was most likely the cause of the changes in species diversity in the ecosystem.
What is the effect of a volcanic eruption?Threats to biodiversity include population expansion, pollution, and climate change. The rate of extinction of species has increased at an unheard-of rate as a result of these concerns.
The majority of the injected ash gets cleared from the stratosphere within a few days to weeks and has no effect on climate change.
Whereas volcanic carbon dioxide, a greenhouse gas, has the ability to support global warming, volcanic gases like sulfur dioxide can actually cause global cooling.
Animal and plant deaths, fish poisoning, and volcanic eruptions' disastrous effects on wildlife are just a few examples.
Therefore, in addition to displacing species, volcanic eruptions can significantly change the ecology in their immediate vicinity.
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climate change and agriculture are interrelated processes on a global scale. How does agriculture contribute to the rising climate?
Agriculture significantly contributes to the amount greenhouse gases emitted into the atmosphere. This is cause by several aspects of agriculture. For instance, livestock generate more greenhouse gases (methane from the wastes they produce) worldwide than all modes of motor-vehicle transportation combined. There's also the aspect of deforestation. Trees help reduce greenhouse gases in the atmosphere by taking CO2 from the air. Therefore, cutting down trees in order to plant crops/raise livestock is indirectly adding to the amount of greenhouse gases in the atmosphere. Agriculture also requires the uses of engines to harvest and transport crops (ex: tractors plowing the soil or trucks transporting crops to grocery stores), which creates greenhouse gases as well.
the answer is d ....
Over time, some organisms have co-evolved so they mutually benefit and depend upon one another. Many plants, for example, have developed adaptations in order to attract specific animals that can spread their pollen or seeds and ensure the plant's reproductive success.
Which of the following is an example of this type of co-evolution?
A.
A flower develops a yellow and blue color, so it can be seen by bees which are attracted to these colors.
B.
A flower develops a musty odor and only opens at night to attract nocturnal bats with a similar odor.
C.
A flower develops a large, flat surface to attract butterflies that prefer to perch as they feed.
D.
all of these
The correct answer is - D. all of these.
The collaboration between different types of organisms in nature is not something weird, it actually happens quite a lot. When we have a situation where two or more organisms have developed a relationship from which both of them benefit, we are talking about mutualistic symbiotic relationship.
The flowers and the pollinating animals are perfect example of this type of relationship. The flowers develop certain color or smell that will attract certain type of the pollinators. They will be attracted by the flower and pollinate it. The flower will become fertilized in that way, while the animal will get food source. Also, the pollinating animal will disperse the pollen in the surrounding area.
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth?
Answer:
Oxygen:
I think that the one element they may need is oxygen. This is because most of the processes in the carbon cycle need oxygen.
Hope This Helps!
Final answer:
The element missing from moons and planets that would make them similar to Earth is oxygen. Oxygen's prevalence on Earth contributes to water and silicate minerals, which are necessary for the planet's life-sustaining environment. Earth contains heavier elements and a rich nitrogen-oxygen atmosphere, distinct from most other celestial bodies.
Explanation:
If carbon was the most common element found in the moons and planets and we are looking for what element is missing that would make them similar to Earth, the answer would be oxygen. Oxygen is the second most abundant element in the Earth's crust and is crucial for the formation of water, which is essential for life as we know it. Earth's crust consists of approximately 28% silicon, which is also essential in forming silicate minerals. These minerals are a significant component of the terrestrial planets, which are composed mainly of rocks and metals. Earth differs from other moons and planets due to our atmosphere and the abundance of liquid water. Terrestrial planets, including Earth, are much more abundant in heavier elements like iron and silicon compared to the gas giants and their moons, which contain lighter elements like hydrogen. Additionally, Earth has an atmosphere rich with nitrogen and oxygen, which is unlike the atmospheres of most moons in our solar system, including our own Moon. The volatiles like water, which makes up our oceans, and the thicker atmosphere that retains these components, are major factors missing in other celestial bodies that make Earth unique.
which characteristic best describes a tropical climate zone.
The tropical climate zone is characterized by stability in temperature and sunlight, leading to high biodiversity and year-round plant growth. It features constant warmth, high humidity, and heavy rainfall.
Explanation:The characteristic that best describes a tropical climate zone is its stability. Tropical climates, situated between the Tropic of Cancer and the Tropic of Capricorn, are characterized by steady warmth all year round, high humidity, and heavy rainfall. The temperatures typically range from 20 °C to 34 °C (68 °F to 93 °F).
In this climate, there is less variation in daily sunlight -- about 11-12 hours per day -- which promotes year-round plant growth. This constant sunlight results in tropical biomes like rainforests hosting diverse and unique ecosystems. Hence, in the tropical rainforest, you will find evergreen forests with broad leaves falling throughout the year, and a huge diversity of plant and animal species.
However, not all tropical areas are rainforests. For instance, Africa's tropical region includes savannas with tall grasses, sparse trees, and varying rainfall patterns.
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The possession of large, strong antlers on a male buck are most likely the result of which type of selection
intersexual selection
hope this helps :)
Answer:
intersexual
Explanation:
What stage of mitosis is shown?
the stage of mitosis being shown is the last stage which is Telophase
The building of proteins, or translation, occurs on which number-labeled organelle? A) 1 B) 2 C) 4 D) 9
Hemophilia is a recessive sex linked trait. A male hemophiliac and a phenotypically normal female have a girl that is hemophiliac. Which of the following statements is correct? A. The daugjter inherited a dominant allele from her mother. B. The mother is a carrier of hemophilia. C. The genotype of the mother is X^h X^h. D. The genotype of the father is X^H Y.
////////
______
its b
______
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Cystic fibrosis is caused by a mutated gene that produces a defective enzyme in the secretory cells. Which statement CORRECTLY describes its treatment interventions? A) regular exercise to control blood cholesterol B) use of vaccines to increase the number of T helper cells C) insulin injections to help transport sugar out of the blood D) antibiotics to cure lung damage caused by thick mucus infection
Answer:
D
Explanation:
This mutation affects these secretory cells and causes them to secrete a thick secretion (rather than the normal 'thin' kind) hence they clog up ducts, pores, and tubes. This is how even the lungs are affected causing wheezing and breathlessness. It gest worse when the mucus accumulates infectious bacteria.
Which of the following is true about cells?
Answer:
Explanation
Answer: C
Cell is the membrane-bound fundamental unit of life, in which all living things are composed. All living things can be divided into three basic domains: Bacteria, Archaea and Eukarya. The primarily single-celled organisms found in the Bacteria and Archaea domains are known as prokaryotes, which are made of prokaryotic cells while organisms in the Eukarya domain are made of the more complex eukaryotic cells. These organisms, called eukaryotes, including plants, animals, fungi etc.
Prokaryotic cells do not have a well-defined nucleus but the DNA molecule is located free-floating in the cell, termed as nucleiod (an open region containing DNA). Prokaryotic cells lack certain organnelles like mitochondria, Golgi apparatus, Endoplasmic reticulum etc. which are all found in eukaryotes, the organnelles are not membrane-bound, if present.
Eukaryotic cells have a well-defined nucleus surrounded by a nuclear envelope that consists of two lipid membranes, where the genetic material is stored and different membrane-bound organnelles to perform different functions within the cell. I HOPED THIS HELPED IF IT IS WRONG JUST TELL ME :D I CAN REDO THIS ANSWER IF IT IS WRONG.
Cells are the smallest unit of life in all organisms and contain DNA. They come from pre-existing cells and possess fundamental components such as plasma membrane, cytoplasm, DNA, and ribosomes. A distinction exists between prokaryotic and eukaryotic cells.
Explanation:There are various true statements about cells. The following statements reflect current understandings in Cellular Biology:
All living organisms are made of cells, each being the smallest unit of life. Each cell contains DNA that they pass on to daughter cells through processes like mitosis and meiosis. All cells come from pre-existing cells following the principle of biogenesis. All cells possess a few fundamental components: A plasma membrane, cytoplasm, DNA, and ribosomes. Body cells, or somatic cells, in humans have the same number of chromosomes as reproductive cells, which is 46. Differentiation exists between prokaryotic and eukaryotic cells, notably in that prokaryotes lack membrane-bound organelles. Learn more about Cells here:
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In the figure, what does letter "B" represent?
In the figure, letter "B" likely represents a food vacuole, a cellular structure crucial for intracellular digestion. It engulfs and digests food particles, facilitating nutrient absorption within the cell. Option A is correct.
In the context of cellular biology, letter "B" likely represents a food vacuole. Food vacuoles are membrane-bound structures within cells that play a crucial role in intracellular digestion. They engulf and enclose food particles, forming a vesicle.
Once sealed, the food vacuole fuses with lysosomes, which contain digestive enzymes. This fusion facilitates the breakdown of ingested nutrients into simpler molecules, allowing the cell to absorb essential substances for energy and growth.
The presence of a distinct structure designated as "B" in the figure suggests an identifiable organelle involved in the cellular process of nutrient digestion and absorption, aligning with the characteristics of a food vacuole.
The correct answer is option A.
Which layer of the earth is a solid and why?
The inner core is solid because of the high pressure and temperature!! Hope I could help :)
The crust is solid and this is because the crust was formed by magma that later was cooled causing it to form the earths crust
Elaine is cleaning her house. Which of the following items can she use as biomass ?
Elaine can us spray cleaners such as Lysol spray, or even Landry detergent
Answer:
The letter E is the right answer.
Explanation:
Biomass is the term used to describe organic matter of plant or animal origin that can be used to create energy. Among the options shown in the question above, the only one that is a product of plant origin is paper, for this reason, we can say that the letter E is the correct option.
Biomass can be obtained by decomposing products of plant origin even if they represent something useless, garbage, such as waste paper.
why are cancer cells harmful
Cancer cells take up the needed space and nutrients that the healthy organs would use. Because of that, the healthy organs can no longer function.
I’m the three domain system which of the following domains includes organisms from more than one kingdom
Eukarya
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When a cell takes in a liquid, the process is called?
pinocytosis
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the process is called pinocytosis. please rate and click the thanks button if this helped
Which letter indicates a region of high pressure in the diagram below?
A. A
B. B
C. C
D. D
The correct answer is b. High-pressure regions are commonly marked with 'H' and associated with clear skies and stable weather. Based on the characteristics of high-pressure areas, the most likely letter indicating such a region in the diagram is B.
To determine which letter indicates a region of high pressure in the given diagram, we need to understand the characteristics of high-pressure areas. High-pressure regions are usually associated with clear skies and stable weather conditions. They are often marked by the letter 'H' on weather maps.
Given the context of high-pressure regions being typically found in deserts and having lower windiness, the correct letter in the diagram should mark an area with similar conditions. Hence, the correct answer is b.
What causes gene flow
Either population of organism with different traits coming in or out
Answer:
Gene flow or allele flow is the transfer of genes or genetic variation among populations.
This gene flow or migration of genes help maintain the similarities between the species or genetic diversity in a population but slows the process of speciation and variation in the population.
The causes of gene flow are:
1. Random mating- random mating among organisms of different population causes movement of alleles in populations.
3. Recombination of chromosomes during meiosis- can change the alleles of the organism.
2. Mutation- mutation in DNA can create new alleles in a population.
4. Random fertilization.
Brittany has the root of a sweet potato plant. She wants to grow more sweet potatoes, so she plants the root in the ground. A new sweet potato plant grows from the root and is identical to the plant from which Brittany got the root. The new sweet potato plant grew from the root of the original through
The answer is asexual reproduction
Brittany's new sweet potato plant grew from the root through vegetative reproduction, a process in which plants grow from parts other than seeds. Sweet potatoes have the ability to produce shoots directly from the root tissue due to their storage of starches and sugars. This type of propagation allows for the cultivation of genetically identical sweet potato plants.
The new sweet potato plant that grew from the root Brittany planted is an example of vegetative reproduction, where plants grow from a part of the original plant other than seeds. Sweet potatoes are propagated by cutting roots, which then develop new shoots. This method is especially viable in sweet potatoes because of their ability to store starches and sugars in their fleshy roots. These nutrients provide the energy needed for the direct growth of new shoots from the root tissue. Another term that is relevant in this context is adventitious roots, which refers to roots that grow from parts of the plant other than the normal root system, such as from stem or leaves.
Other starchy roots that people eat include carrots, parsnips, beets, and turnips, though these are typically grown from seeds rather than from root cuttings like the sweet potato. Sweet potatoes possess the unique ability to produce new plants through secondary growth, which supports additional storage space for nutrients.
Which organism is classified in a division?
Answer:
The division is a taxonomic rank in classifications of the biological organisms used separately in the botany and zoology kingdom. In the botany, the kingdom division is equivalent to the phylum. They include Marchantiophyta, Anthocerotophyta and other phylum-level groups of organisms.
In the zoological kingdom, division refers to a rank use to superordinate to the cohort and subordinate to the infraclass. Living tetrapods are classified to the rank as Divisions Amniota and Amphibia within the group of fleshy limb vertebrates.
Answer:
Plants and fungi are classified in the division.
Explanation:
Division is one of the taxa present in the scientific classification of living beings. The division is the taxon corresponding to the phylum, but the name "division" is used to classify plants and fungi. Like the phylum, the division groups beings that are more biologically related than living beings grouped in kingdoms and less biologically related than living beings grouped in classes.
how does extinction affect biodiversity?
➷ To understand this, you will need to understand what biodiversity is.
In simple terms, biodiversity is the variety of life on Earth.
Another term you need to understand is Extinction.
Extinction is when a species is wiped out on existence.
After understanding those two terms, it should start to make sense.
Extinction causes a reduction in biodiversity.
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