Tropical rainforests make up what percent of africa s landmass?

a. about 5%

c. about 50%

b. about 20%

d. about 90%

What would happen if the concentration gradient were eliminated between a cell and its environment?

How much genetic information is found in a gamete?

In a cross between pure-breeding tall plants with pure-breeding short plants, all of the F1 are tall. When these plants are allowed to fertilize themselves, the F2 plants occur in a ratio of 3 tall:1 short.

The self is innate and part of our genetic makeup. a. true b. false

How does ph affect enzyme controlled reactions

The place where reactants bind to an enzyme during a reaction is called the

Interactions between actin and myosin filaments of the sarcomere are responsible for

What is the name for an organized group of cells that work togethe?

Matching pairs of chromosomes from the parents are called

What is the thick, tough tissue surrounding plant cells