Hypo secretion of which of the following hormones can lead to obesity?
a) prolactin
b) calcitonin
e) thymosis
b) t3 and t4
d) melatonin

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

Amap's orientation is typically determined by an