a neurosecretory cell in the hypothalamus.
DNA is the correct answer but next time put answer choices so that people can better answer your questions. Thanks!
I think the answer for Q2 is D but i could be wrong. sorry if i am
Answer:Biodiversity. The variety of organisms in a given area. Succession. The replacement of one community by another at a single place over a period of time. Pioneer Species.
Explanation: