Which two organisms are most closely related?
(1) cyanobacteria and green algae (3) brown algae and red algae
(2) red algae and spinach (4) red algae and cyanobacteria

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

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm