Name the structure that allows motility in the following groups: amoebozoa, excavates, and ciliates. What will be an ideal response?

The sodium/potassium pump is an example of:

A. a symporter. B. passive transport. C. an antiporter. D. channel-mediated diffusion. E. None of these choices is correct.

Sequence similarity between genes plays an important role in assigning gene function

Indicate whether the statement is true or false

What is the driving force of energy production in steps 6 and 7?

a. The reduction of three-carbon compounds b. The reduction of NAD+ to NADH c. The oxidation of three-carbon compounds e. The energy potential of a proton gradient

Which of the following is an example of natural selection?

A) depending on the food a turtle eats, it shell may grow faster or slower B) a bird's beak is able to effectively crack the seeds it encounters C) bacteria can be effectively killed by treatment with bleach D) sometime during human's life they break a bone and it heals E) human beings develop freckles from being out in the sun