This figure shows a section of a double-stranded DNA molecule. What aspects of the structure of DNA are explained by this model? A. Paired nucleotides are held together by covalent bonds.
B. Adenine is paired with thymine and guanine is paired with cytosine.
C. Paired nucleotides are held together by hydrogen bonds.
D. The two strands of DNA each have phosphate-sugar backbones.
E. The numbers of each nucleotide determine genetic information.

***select all that apply

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.

Which of the following is the function of the nociceptors? a. detecting odors in the nose b. detecting painful stimuli c. detecting central body temperature d. detecting touch and pressure

How do temperature and salinity affect deepwater currents? they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water.