The area labeled "A" is
a. a nucleus.
b. chromatin.
c. endoplasmic reticulum.
d. a vacuole.
e. a nucleolus
E
You might also like to view...
A cell's plasma membrane contributes to homeostasis by:
A. acting as a selective barrier. B. defining the boundary between the inside and outside of the cell. C. functioning as a fluid mosaic of lipid and protein. D. maintaining the shape of the cell.
Which of the following elements can foster the process of crossing over?
A. RNA polymerase B. promoter elements C. enhancer elements D. transposable elements E. topoisomerase
All the populations of different organisms that live in the same place form a(n) ____
a. ecosystem b. community c. biosphere d. organ e. population
The appearance of photosynthetic cyanobacteria and aerobic bacteria
A. led to the development of an oxidizing atmosphere on Earth. B. led to the formation of the ozone shield. C. The amount of UV light reaching the Earth was reduced and chemical evolution slowed. D. All of the choices are correct.