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

Describe three ways that fungi have adapted to increase the successful distribution of spores

Male peacocks have large colorful tails that they spread in a fan shape to attract females during courtship. Peahens (female peacocks) are more likely to mate with males that have larger and more colorful tails.

The structure (s) that may carry either urine or sperm in the male pig is (are): a. ureter b. bladder c. urethra d. penis e. a and b f. c and f g. b, c and d h. all of the above

When ancient, decaying bones and organisms become compressed together, what type of sedimentary rock would form?

Label diagram of typical insect

What is one difference between mitotic cell division in plants and mitotic cell division in animals? A) Chromosomes are replicated in plants but not in animals. B) The replicated chromosomes separate in plants but not in animals.

A woman who is normal weight before her pregnancy should gain approximately how much weight throughout the first trimester of her pregnancy?

A biological community of interaction organisms and their physical environment

The tilt and size aftereffects both illustrate: a. that percepts are likely mediated by the collective activity at ensembles of neurons b. that adaptation to patterns causes selective changes in sensitivity in certain neurons c.

Which of the following make up our integumentary system? * A. Skin B. Hair C. Finger nails D. All of the above.