3. RNA contains which of the following bases:

A) thymine, guanine, cytosine, uracil

B) adenine, thymine, guanine, cytosine

C) adenine, thymine, guanine, uracil

D) adenine, guanine, cytosine, uracil

Which of the following statements about water is FALSE? Water carries a dipole because of the geometry of the two oxygen-hydrogen bonds. a. Substances with polar functional groups are generally soluble in water. b.

What would go wrong if cell division occurred without the s phase?

A farmer wants to increase the amount of food produced by corn crops. If the farmer selectively breeds the plants, which trait could the farmer select for?

Hydrogen sulfide A. is produced when sulfur compounds are used as terminal electron acceptors. B. may react with iron to produce a black precipitate. C. is produced by Desulfovibrio. D. has a rotten egg smell. E. All of the choices are correct.

What is the difference between the two types of cells: eukaryotic and prokaryotic? quizlit?

Ape species began to dwindle during the Miocene, leaving only a few remaining: a situation that exists up to the present. It is thought that the number of ape species reduced at that time because

Jon is in a car accident and severs an artery in his leg. He loses a significant amount of blood and experiences a drop in blood pressure. Explain how his body senses these changes, and how it will respond in an attempt to maintain homeostasis.

a scientist is conducting an investigation that involves water, silver corbon dioxide, and oxygen gas. Which group of statement best describes all of the materials he is using in the investigation?

The question below refers to the selection "taste-the final frontier." hydroponic plants are grown - a. on mars. b. without air. c. in water. d. in soil.

The movement of hot and cold air between land and sea creates what? a. Sea breeze b. Solar energy c. Trade winds d. Coriolis effect