About 2 3 of the mass of this cell is a) air. b) ribosomes. c) proteins. d) water.

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

What is the most appropriate method of gaining weight (muscle mass)

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection