All donated blood is tested for syphilis, hepatitis, and hiv according to guidelines established by the food and drug administration.

a. True

b. False

The kidneys filter 2of blood every hour

Human herpesvirus 4 is better known as cytomegalovirusa. Trueb. False

Both of Beth's parents have brown eyes, but Beth has blue eyes. What is the best explanation for why Beth has blue eyes

Harmful algal blooms are a result of what type of pollution?

A pathogen passing from a mother to her her fetus can cause

Which one question can be answered using the scientific process? A-should grocery stores be forced to use paper bags B-how much water does it take to make a plastic bag C-should the government be allowed to ban plastic bags D-how should people be

What are the 7 primary organs tissues for lymphatic

What term is used to describe the number of individuals per unit area? A. carrying capacity B. population density C. population coverage

What organic molecule is most important as the source of building blocks for cell structure and least important it's role as an energy source

Which statement is correct about two objects that have gravitational force? A. They have mass B. They move slowly C. They are round in shape D. They have high temperature