C, H, O, N, P, and Ca
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Calcium
The statement which correctly describes natural selection is (1) it favors the survival of certain members of the species and results in a change in the proportion of individuals with highly <span>adaptive traits.
Natural selection, by definition talks about the successful passing down of genes from older generations to younger generations. These then are better adapted to their environment. This is exactly what the first answer is about. </span>
The propositions are:
a.alkylating agents
b.antimetabolites
c.topisomerase inhibitors
d.nucleoside analogs
e.<span>AZT
The right answer is A,
An alkylating agent is a compound capable of adding alkyl groups to various electronegative groups under conditions present within the cells.
Antimetabolites are an anticancer drug but act differently than the alkylating agent. (interfere with folic acid)
Topoisomerase inhibitor acts by inhibiting isomerase, used in antibiotherapy (like quinolones).
Nucleoside analogs are analogs as their name says, it does not alkylate nucleotides.
AZT (</span><span>Zidovudine) is an antiretroviral drug that inhibits reverse transcriptase.</span>
Answer:
During mitosis, when the nucleus divides, the two chromatids that make up each chromosome separate from each other and move to opposite poles of the cell. ... Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase.
Explanation:
I hope this helps :))
(This is from google)
Im 98% sure its the 3rd one... the other 2% im not that sure
