Which of the following is true of both active transport and facilitated diffusion?

A. Both move materials down a concentration gradient

B. Both involve proteins in the membrane

C. Both require ATP

D. Both occur in only one direction

Which of the following is a contributing reason behind emerging disease? a. The overuse of antibiotics b. The lack of evolution in hosts c. The lack of evolution in pathogens d. The absence of migration or travel in organisms

Arrows have different meanings in different contexts in biology. Which phrase does the best job of describing the meaning of the arrows in this model?

Los huevos estan vivos

Which species is believed to be the first creature to walk erect and possibly be the first hominin?

What are two advantages of two disadvantages of aeothermal?

If nondisjunction occurs and an individual survives, which disorder can occur?

The three factors that can be defined as essential parts of one's overall health. A. physical, scientific, and mental and emotional B. mental and emotional, professional, and social C. social, mental and emotional, and physical D.

Features that increase the likelihood of survival and reproduction by an organism in a particular environment are called

How do the nitrogen bases pairs join in DNA?

In the skin, the epidermis can be compared to what analogy?