Fish, snakes, and birds are all types of A. spiracles B. vertebrates C. invertebrates D. insects

One similarity between magnetism and gravity is Group of answer choices a. magnetism and gravity only work at close distances b. magnetism and gravity both exhibit a push and pull force c. Magnetism and gravity are both non-contact forces d.

What does the calvin cycle use to produce high-energy sugars?

What property of the DNA molecule explains the necessity for Okazaki fragments? DNA is antiparallel. DNA is a linear molecule. DNA is negatively charged. DNA is wound around histones.

Julie is an amateur astronomer. Using her telescope, she observes a planet that has large rings with beige and reddish bands.

Which of the following "vegetables" is botanically a fruit? A) lettuce B) radish C) cabbage D) okra

Which of the following is not used to collect data? pseudoscience surveys models observational studies

The denaturation of proteins in a cell would have a profound effect on which of the following cellular activities? Choose all that apply.

Which of the following is not true of pyrimidines? A. example: thymine B. have a single ring structure C. example: cytosine D. example: adenine

Which class of molecules functions as chemical signals?

How many countries does North America have?