Answer:
pink
Explanation:
All cells contain the same genetic information. why can't cells other than stem cells differentiate into various tissues?
Within ecosystems, high quality energy is constantly ____.
a. being recycled
b. becoming low quality energy
c. being destroyed
d. becoming matter
e. being made
As a result, the amount of energy delivered diminishes as we travel up the trophic levels. In the food chain, grass has the most energy and lions have the least. Thus, option B is correct.
What alters in change in quality of energy in an ecosystem?The result is that the lowest quantity of energy is accessible to carnivores (secondary consumers) that feed on herbivores and detritivores, as well as those that devour other carnivores (tertiary consumers).
To create organic matter from carbon dioxide and water, producers like plants, algae, and cyanobacteria utilize the energy from sunshine.
A trophic pyramid is a basic interactional structure shared by all biological populations.
Therefore, High-quality energy is constantly converting to low-quality energy inside ecosystems.
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Halophiles are a type of and are considered lovers.
Answer:
Halophiles are archaea and considered the lovers of saline or salt.
Explanation:
Halophiles are included under the domain archaea and considered as extremophile organism. Some halophiles are included in the bacteria laso but the major halophiles are the archae.
Halophiles are included in archae as they do not contain well defined nucleus, endomembrane system is absent and cell wall is not made of peptidoglyan layer. Halophiles has the ability to tolerate the extreme saline conditions. They can be found in he area that contains salt concentration five or six times greater than ocean.
How has nearly all the food we eat been "genetically modified" in the broadest sense of the term?
Because plants do not have skeletons, what accounts for their rigidity?
Which takes more time to recover, primary succession or secondary succession?
If the water temperature in a lake rises from 10oC to 25oC, what effect is it likely to have on aquatic animals that have a high demand for dissolved oxygen?
A) They will adapt to the change in temperature and use less dissolved oxygen.
B) They will leave the lake and find another with cooler water.
C) They will find it easier to meet their needs for dissolved oxygen.
D) They will find it harder to meet their needs for dissolved oxygen.
Which factors may help begin an ice age? Select all that apply.
A. volcanic eruptions
B. Earth's revolution around the Sun
C. increased oxygen in Earth's atmosphere
D. the clustering of continents near the poles
E. increased dust particles in Earth's atmosphere
F. increased carbon dioxide in Earth's atmosphere
Answer:
A. volcanic eruptions
D. the clustering of continents near the poles
E. increased dust particles in Earth's atmosphere
Explanation:
Ice age is the name given to the period where thick layers of ice cover large areas of the earth. These periods can last thousands of years and dramatically change the characteristics of the planet. There have been some very significant ice ages in the history of the planet. In the late nineteenth century, much research showed that there were several ice ages that alternated with interglacial periods.
Many scientists believe that we will live a new ice age in 2050. This ice age, though expected shortly, will bring catastrophic results to the life we know. One certainty we have is that if this ice age occurs, it will be caused by human interference with nature and all the degradation that man has caused to the environment. In addition, this ice age is likely to be triggered by the factors likely to cause an ice age: volcanic eruptions, clustering of continents near the poles and increased dust particles in Earth's atmosphere
How do oil spills affect marine ecosystems?
A) Oil has nutrients that are useful for marine plants.
B) This has no lasting effect, as the oil evaporates in a few days.
C) Marine animals absorb the oil through their skins and store it as fat.
D) Marine organisms die because oil stops oxygen from entering the water.
hint : oil floats on water.
Answer:
The answer is D) Marine organisms die because oil stops oxygen from entering the water.
Explanation:
The oil spill results in the death of many marine beings, due to the contaminants of the oil compounds that are tremendously toxic. Due to the oil film, the oxygen content in the water is reduced, which causes the asphyxiation of the fish, since they need oxygen to live, which comes from the water, that by the gills, retains the present oxygen and distributes it through the circulatory system through the body.
How would you distinguish a just action from an unjust action?
A just action is having to do a certain action that is right or means of having to follow the law that is established and without having to break the rules while an unjust action is having to perform an action or behavior that are named or labelled to be a wrong as a matter of doing bad things or breaking the rules that should be followed.
The measure of an organism's ability to compete in the struggle for existence is known as
Microbial mats differ from biofilms in that they __________.
Which series of labels correctly identifies the indicated structures of this sketch of a cell under a microscope? If you need the answers it will take a while.
A: The right answer is Vacuole
Vacuoles are organelles present in plant cells. It is a large single structure, of variable shape according to the cells, delimited by a lipid membrane called tonoplast.
The vacuoles allow the storage of water, ions, sugars, ... and by magnifying, play an important role in the growth of the plant.
B: The right answer is Mitochondria
Mitochondria are organelles present in eukaryoptic cells. The mitochondrion is composed of a double membrane, the inner membrane being folded into mitochondrial ridges.
Mitochondria are the organelles that produce the energy of the cell. The mitochondria thus have a role of power station for the cell. They are the ones who perform cellular respiration.
C: The right answer is Cell membrane (the inside layer)
All cells (prokaryotic and eukaryotic) are separated from their environment by a palsmic membrane.
The plasma membrane is the line of demarcation between the cell and its environment (= envelope of the cell).
It determines what goes into the cell and what comes out of it. Like all biological membranes, the plasma membrane has a selective permeability, that is to say it is allowed to pass through certain substances more easily than others.
The plasma membrane consists of a double lipid layer in which proteins are inserted.
D: The right answer is Chloroplast
Chloroplasts are important organelles specific to plant cells. Chloroplasts appear green ... They contain chlorophyll, a pigment that captures solar energy.
Choroplasts perform photosynthesis, that is, they absorb sunlight and use it for the manufacture (synthesis) of organic compounds from carbon dioxide and water.
E: The right answer is Lysosome
The lysosome is a small spherical structure (a vesicle) delimited by a lipid membrane located in the cytoplasm of eukaryotic cells. The membrane contains ion channels (proton pumps) that allow the active entry of H + ions, in order to maintain an acid pH (between 3.5 and 5) within the lysosomal vesicle.
Lysosomes are organelles of eukaryotic cells that contain a mixture of digestive enzymes used to degrade macromolecules.
Lysosomes are considered the "stomach" of the cell.
F: The right answer is Endoplasmic reticulum
The endoplasmic reticulum are organelles of eukaryotes that extend throughout the cytoplasm (like a labyrinth). These are organelles that produce proteins and play a vital role in the development of the other membranes of the cell.
What major geographic event took place during the Mesozoic Era?
Who was the first scientist to discover cells with the use of a homemade microscope?
Carolus Linnaeus
Robert Hook
Rudolf Virchow
Theodor Schwann
Answer:
Robert Hooke
Explanation:
The cell was first discovered by Robert Hooke in 1665. He observed a slice of a cork cells under a crude or a primitive microscope. He observed the dead cells of a cork. For the first time, Leeuwenhoek in the year 1674 discovered the living cells in pond water for the first time with an improved microscope.
Dr. Jenkins just completed an experiment. The variable that was measured in her experiment is referred to as the _____ variable.
The variable that is measured in an experiment, which reflects the potential effect of the independent variable, is referred to as the dependent variable.
Explanation:The variable that was measured in Dr. Jenkins experiment is referred to as the dependent variable. In any experimental study, there are typically two kinds of variables: independent and dependent. The independent variable is the one that is manipulated or controlled by the researcher. In contrast, the dependent variable is what the researcher measures to see the effect of the independent variable. For instance, in a study exploring the effect of study hours on test scores, the amount of studying would be the independent variable (as it is what is being changed or controlled), while the test scores would be the dependent variable (as it is the outcome that is being measured).
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What law BEST explains why we would expect 75% of the offspring to have large teeth? A) Law of Dominance B) Law of Segregation C) Law of Filial Generations D) Law of Independent Assortment
Correct answer: A). Law of Dominance
The Mendel's law of dominance states that when a cross is done between the parents that are true for characteristics traits, then under such a situation only one of the trait will be dominant and appear in the next generation, and the other will be hidden. It will appear in the trait that is dominant.
The alleles that are expressed in are called as dominant while the characteristics that do not got express is called a recessive trait.
What parts of the environment can control the size of a population?
Both molecule a and molecule b are classified as __________.
Both molecule a and molecule b are classified as lipids. The correct option is B.
What are lipids?Lipids are fatty substances that have many different jobs to do in your body. They are a component of your cell membranes and aid in regulating what enters and exits your cells.
They aid in producing hormones, absorbing vitamins, and transporting and storing energy. Having too many lipids can be dangerous.
A vital part of the cell membrane are lipids. Typically, the structure consists of a glycerol backbone, two hydrophobic fatty acid tails, and a phosphate group (hydrophilic). Phospholipids are hence amphipathic.
Triacylglycerols, sometimes referred to as triglycerides, phospholipids, and sterols, are the three primary categories of lipids.
Thus, the correct option is B.
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Your question seems incomplete, the missing options and missing image is:
A. Nucleic acids
B. Lipids
C. Carbohydrates
D. Proteins
Molecule A and B are stereoisomers, specifically enantiomers, which are nonsuperimposable mirror images with identical physical properties but different interactions with polarized light and chiral molecules.
Both molecule A and molecule B are classified as stereoisomers. Stereiosomers are molecules that share the same molecular formula and bonding arrangement but possess a different spatial arrangement of atoms. Specifically, A and B are a type of stereoisomers called enantiomers, which are nonsuperimposable mirror images of each other. A chiral molecule (one that has a non-superposable mirror image, like a left and right hand) will have one enantiomer, and together they form an enantiomeric pair. The physical properties of enantiomers, such as melting point, boiling point, and density, are identical, but they differ in their interaction with polarized light and other chiral molecules, such as proteins. This difference is foundational in biological organic chemistry where the interaction with chiral biological molecules can lead to drastically different biological responses.
Which type of microscope should sherman use to try to see the 3-dimensional shape of a virus in the patient's sample?
Answer: Scanning electron microscope
Explanation:
which function function for prokaryotes is described by binary fission?
Answer:
Binary fission or bipartition is a way of asexual reproduction
Explanation:
Most bacteria depend on binary fission to spread. Conceptually, this process is simple; The cell simply needs to grow twice its size and then divides into two. But, in order to remain viable and competitive, the bacteria have to divide at their own time, in their own place, and they must provide each stem. The cell division of the bacteria is studied in many parts of the world. This research is revealing the genetic mechanisms that direct and regulate bacterial cell division. Understanding the mechanisms of these processes is of great interest because this allows the development of chemical products and new antibiotics aimed at interfering with the cell division of bacteria.
Before binary fission occurs, the cell must copy its genetic material (DNA) and deposit it at the ends of the cell, likewise copying the different types of proteins that the new cell division machinery will include.
Which of the following would mostlikely increase the rate of photosynthesis?
A. Decreasing the temperature within the plant's environment B. Decrease the availability of water to the plant C. Changing a plant's light source to a lower brightness D. Exposing a plant to a higher light intensity
The outer surface of a cell that controls what enters and leaves is called
Starch, which can be obtained from bread, rice, and potatoes, is a
The starch that is obtained from bread, rice and potatoes is a complex carbohydrate. A complex carbohydrate are being turned to or formed into glucose in which is essential for an individual in order to have energy that is important in our every day activities.
Which cell junction (not shown) allows direct passage from one cell's cytoplasm to the next?
Gap junctions are cell junctions that allow the direct passage of molecules, ions, and electrical signals from one animal cell's cytoplasm to another, through connexon channels formed by connexin proteins.
The cell junction that allows direct passage from one cell's cytoplasm to the next is known as a gap junction. Gap junctions are composed of connexons or hemichannels, which consist of six connexin proteins that pair up with connexons of adjacent cells. This unique connection facilitates the exchange of various molecules, ions, and electrical signals between cells, enabling them to communicate and coordinate their functions effectively. In contrast, plants have a similar structure called plasmodesmata which traverse the cell walls and allow for the movement of substances between the cytoplasm of adjacent plant cells.
How does heat transferred through radiation different from conduction and convection /7622668/12287573?utm_source=registration
The three different ways of heat transfer include radiation, conduction, and convection of heat energy.
What are the processes of heat transfer?There are three ways in which heat is transferred into and through the atmosphere including radiation, conduction, and convection.
Radiation is energy which comes from a source and travels through the space at the speed of light. This energy has an electric field and a magnetic field which are associated with it, and has wave-like properties.
Conduction is the process through which heat energy is transmitted through collisions of particles between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are more closer together than in that of gases, where particles are further apart from each other.
Convection is the process of heat transfer through the bulk movement of molecules within fluids such as gases and liquid molecules. The initial heat transfer between the objects and the fluids takes place through conduction, however the bulk heat transfer happens due to the motion of fluid.
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how do you make babies
The irregular ridge on the midline of the scrotum, formed from fusion of the urethral folds during development is the
Which microscope would be used to see pollen found on a suspect side by side with pollen from a crime scene?
A Scanning Electron Microscope would be ideal for analyzing pollen from a crime scene due to its high resolving power, providing a highly detailed view of the grains, and allowing for a more accurate comparison.
Explanation:
To analyze something as minuscule and detailed as pollen from a crime scene, a Scanning Electron Microscope would be ideal. This type of microscope allows for an extremely detailed view of the specimen. This is due to the fact that electron wavelengths are considerably shorter, up to 100,000 times than the wavelengths of visible-light photons, as shown in Figure 6.1 with an image of pollen. This allows for a detailed comparison of the pollen from a suspect and a crime scene side by side as their detailed features, like the sizes, shapes, and surface patterns, would be distinctly visible.
However, it is worth mentioning that different types of microscopy can be used depending on the specific requirements of the examination. For instance, brightfield microscopy offers clear images with good contrast, while darkfield and phase-contrast microscopes can provide further details as they increase contrast and make more intricate structures visible. But for the case of comparing pollen grains, electron microscopy stands as the most effective option due to its high resolving power.
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The cerebral cortex plays a major role in our emotions because it _____.
The cerebral cortex plays a major role in out emotions because it plays a role in the capability to identify and control emotions. The Cerebral Cortex is composed of tightly packed neurons and is the creased, outermost layer that surrounds the brain. It is also accountable for higher thought progressions including speech and decision making . The cortex is divided into four different lobes, the frontal, parietal, temporal, and occipital, which are each responsible for giving out different types of sensory data.