Why are there fewer organisms at the top of the food pyramid

Why do areas with low latitudes have warmer air than areas at high latitudes

How to recognize when two chromosomes are homologous?

Spores are produced in a pine cone-like structure by club mosses.

Color Blindness is a sex linked disease. Therefore, it has to affect which pair of chromosomes?

Which best describees the meaning of luster in relation to minerals?

Which of the following best describes a noncontact force? A. a force that is able to act at a distance B. a force that must be physically touching the object it acts on C. a force that always pulls objects backward D.

Which type of energy used on earth comes directly from the sun

Aldosterone is secreted in response to changes in: select one: a. blood potassium levels. b. blood calcium levels. c. blood pressure. d. body temperature. e. blood glucose levels

How does a mutation in dna cause a disease that affects multiple organs?

Dylan is on a strict vegan diet. He doesn't consume meat, fish, eggs, or dairy products. Which nutrient is difficult to obtain naturally from a vegan diet