A barrier made up of several layers that stops pathogens from entering the body is

a. the skin. b. white blood cells. c. cilia. d. mucus.

Explain what happens during the process of fertilization using the following terms: diploid, egg, haploid, sperm, and zygote

What is the difference between pollination and fertilization?

Describe the word difference between a chemical change and a physical change

True or false forces between particles increase as a particles move faster in further apart

The ability to taste PTC is

According to condensuon theory, the most important factor for the formation of our plant was

Which of the following are functions of lipids? Choose three correct answers. A. forming the exoskeletons of insects B. forming waxy leaf coverings C. forming bones and cartilage D. storing energy in fat cells E. forming cell membranes F.

The ability of the body to undergo prolonged whole body, large muscle activity is:

In humans a gene that has been identifoef as causing a type of skin cancer is the

Which one of the "big 3" macronutrients is the most calorically dense at 9 calories per gram?