Gametes are formed by

a. parthenogenesis.

b. mitosis.

c. fertilization.

d. meiosis.

Which type of nonvascular plant grows in new or disturbed environments? A. mosses B. ferns C. hornworts

What is the difference between climate and weather? If you're not sure, take a guess. A. Weather is the short-term atmospheric conditions in a region. Climate is the long-term atmospheric conditions in a region. B.

Which heart structure prevents blood from flowing backward? aorta valve septum coronary artery

Which of the following creatures does not gain energy from marine snow either directly or indirectly

An organism that carries on photosynthesis in each cell is called

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.

Which process causes clouds to form on particles of dust

Which is an advantage of producing genetically engineered crops that have pest-resistant genes? bioaccumulation of crops over time allows farmers to grow any crop they want reduces the use of pesticides for certain insects gene transfer to nontarget

If an individual was exercising at an exercise intensity of 1.5 liters of oxygen per minute, and had a mechanical efficiency of 20 percent, how many heat Calories would this person generate in 30 minutes?