The two structures that limit transpiration are known as

a. Guard cells and xylem

b. Stomata and guard cells

c. xylem and phloem

d. stomata and phloem

The broadest classification level for organisms is A. kingdom, which includes Archaea, Bacteria, and Eukarya. B. kingdom, which includes Animalia, Plantae, and Fungi. C. domain, which includes Archaea, Bacteria, and Eukarya. D.

The mesozoic era marked the emergence of which life forms?

Number of chromosomes sets with in a cell is reduced during

What happens during anaphase

In DNA, the "rungs" between the two strands of DNA are formed from the a. covalent bonds between nitrogen base pairs. b. ionic bonds between the phosphate pairs. c. ionic bonds between the nitrogen base pairs. d.

Which is an example of commensalism in the tropical rainforest? a. parasites feed on the sloth's body. b. sloths are food for other animals. c. algae live in a sloth's fur, providing it with camouflage. d. insects lay eggs in the sloth's waste.

Why do you think the caterpillar is colored green?

A punnet square predicts a 9:3:3:1 ratio for phenotypes. Explain what that ratio means ...

What is the meaning of virus?

A 6-year-old boy has marked edema of the legs, accumulation of fluid in the abdomen, and a low blood serum albumin and total serum protein. his urine contains large amounts of protein. what is the most likely cause of edema?