Fish spend their entire lives under water. How does the respiratory system of a fish compare with that of a human

Which organelles in the cells of the alfalfa plant allow it to produce food

Describe one negative thing about a type of algae

1. what is population? 2. what are 2 thing that increased a population? 3. what are 2 things that decreased a population?

From which of the following structures does a flatworm expel solid waste? cloaca vesicle pores in skin mouth

What happens to energy as molecules are broken down into their different atoms?

Choose the statement that best describes the Moon's landscape. A. sparse vegetation, very little erosion, sandy soil B. riverbeds with boulders, dust storms, bad weather C. many craters, maria formed from volcanic eruptions D.

Chromosome mutations involve the deletion or duplication of many genes. The effects of chromosome mutations are often much greater than mutations within a single gene, because chromosome mutations A. can only occur at the time of fertilization. B.

Name the class of nutrients that consists of triglycerides phospholipids and sterols

The rigid, outer layer of Earth is referred to as the asthenosphere. a. True b. False

GMU professors in Biology/Medicine area founded companies or are the members of Scientific Advisory Boards of the companies.