<span>Population crash is a sudden decrease in the number of people found in a given area as a result of shortage or the lack of environmental resources necessary for reproduction, survival and growth of the population. It is also known as a die back. The answer to your question is A. population crash.</span>
Answer:
Following are the factors are given below:-
Explanation:
In general, the toxicity of a substance depends on the following factors.
- Chemical type and inherent behavior.
- Dosage, in particular the link dose-time.
- Exposure route.
- Species.
- Stage in life, such as child, young adult, or an older adult.
- Gender.
- Fitness to drink.
- Metabolism.
- Allocation inside the organ.
- Excretion
- Human safety, including organ function and childbirth, requiring physical effects that can affect toxicity.
- Nutritional status
- Many chemicals are available.
- Circadian rhythms (the time of day caused by a medication or other substance)
This is because the GP120 protein
of the HIV virus that forms the ‘knob’ is
essential for the infection of CD4 cells
of the immune system by the virus. The glycoprotein is, therefore, a good
target for vaccines especially since the
molecule is highly conserved because most mutations in the region could be highly deleterious to the virus.
