Answer:
B.8
Explanation:
In a dividing cell, each chromosome consists of two chromatids. Both the chromatids remain attached at the centromeres. If in a dividing cell there are 8 centromeres, indicates that dividing cell has 8 chromosomes. Chromosomes separate during anaphase. The cell is still dividing and not separated into two daughter cells. Therefore, if the cell has 8 centromeres during metaphase, the same number of centromeres will be present during anaphase. Thus, 8 is the correct answer.
Explanation: Differences: Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.
Similarities: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Answer:
It is absorbed or reflected by clouds, gasses, and dust, or is reflected off of Earth's surface.
Explanation:
The solar energy that is not absorbed by Earth's surface is reflected back into space or absorbed by the atmosphere, contributing to the greenhouse effect.
The solar energy that is not absorbed by Earth's surface can be reflected, scattered, or absorbed by the atmosphere. Some of the solar energy is reflected back into space by clouds, particles in the atmosphere, and Earth's surface. This is known as albedo. The rest of the solar energy is absorbed by gases such as carbon dioxide and water vapor in the atmosphere.
This absorption of solar energy by the atmosphere contributes to the greenhouse effect, which helps to regulate Earth's temperature. The absorbed energy is re-emitted as heat, warming the lower layers of the atmosphere. This is why the Earth's surface is warmer than it would be without an atmosphere.
In summary, the solar energy that is not absorbed by Earth's surface is either reflected back into space or absorbed by the atmosphere, contributing to the greenhouse effect and warming the atmosphere.
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B. changing the activity of the acylcarnitine shuttle
C. targeting the acetyl-CoA transport shuttle in the mitochondrial membrane
D. altering the activity of the oxidoreductase enzymes in β-oxidation
Answer:
The correct statements are A negative feed back regulation if free fatty acid accumulate C targeting the acetyl CoA transport shuttle in the mitochondrial membrane
Explanation:
The beta oxidation of fatty acid can be regulated by several following ways.
A The accumulation of free fatty acids exerts negative feedback during beta oxidation of fatty acids.As oxidation of fatty acids result in the breakdown of complex fatty acids in free fatty acids and acetyl CoA,the accumulation of free fatty acids lowers the rate of beta oxidation of fatty acid.
C The targeting of end product of beta oxidation that is acetyl CoA to the mitochondrial membrane also regulates the beta oxidation pathway.Because more the transport of acetyl CoA to the mitochondrial membrane more will be the rate of fatty acid break down by beta oxidation.
Explanation:
i didnt pay attention last year soooo sorry
b. The nose
c. The pharynx
Answer:
c. The pharynx
Explanation:
The pharynx is a tubular organ that begins in the funnel-shaped neck down the neck, extending from 12 to 15 cm in length and about 35 mm at its onset and about 15 mm at the end. its ending. It has communication with the esophagus, nasal passages and the ears. The pharynx is located behind the nasal passages and in front of the cervical vertebrae, remains attached to the larynx and esophagus.
Simply put, we can say that the pharynx is a funnel-shaped passageway that connects the nasal and oral cavities to the "voice box," also known as the larynx.