CD8+ T cells is the type of cell attacks a variety of unwanted cells and causes those cells to undergo apoptosis
Apoptosis occurs normally when the development and the aging and as a homeostatic mechanism to maintain the cell populations in the tissues. Apoptosis can also occurs as the defense mechanism such as in the immune reactions or when the cells are damaged by the disease or the noxious agents
Apoptosis is basically form of the programmed cell death that is occurs in the multicellular organisms. the Biochemical events lead to the characteristic cell changes and the death. These changes may include the blebbing, cell shrinkage, the nuclear fragmentation, and the chromatin condensation, the DNA fragmentation, and the mRNA decay
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Answer:
a. Carbon dioxide is added to a five carbon sugar, making it a six carbon sugar.
Explanation:
I think this is the answer, but I'm not sure. I learned this a long time ago in Biology.
Punctuated equilibrium is a theory biology<span> which proposes that once </span>species<span> appear in the fossil record they will become stable.
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So according to above explanation
<span>C. puncated equilibrium</span> , is the correct
answer
The earth's atmosphere consists mainly of nitrogen and oxygen with smaller proportions of other gases such as carbon dioxide. The amount of carbon dioxide in the atmosphere is maintained through a balance between processes such as photosynthesis, respiration and combustion. However this balance is being affected by human activities which are polluting the atmosphere.
The proportion of these gases in the atmosphere is as follows: nitrogen is the most abundant at 78%, oxygen is next at 21%, while others include carbon dioxide at 0.037% and argon at 0.9 % .
