Hydrotropism is responsible for roots growing deeper in soil in order to:

A : reach water

B : become more firmly rooted

C : obtain soil nutrients

D : none of the above

Why is clonal selection and expansion so important to the immune response?

Is anaebaena azollae gram positive or gram negative?

Since neither red or yellow is dominant over the other, and some Heliodors are orange, what type of inheritance pattern does this display

The term for the type of mutation that results in a loss of material from the genome is

Is diabetes an infectious or non-infectious disease?

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?