An object weighs 100 lb. on the surface of the earth. How much does it weigh 4R from the surface? (5R from the center)

You have blue eyes while your best friend has brown eyes what do we call that characteristic that distinguishes you from another? A. Allele B. traits C. homozygous D. dominant

In a plant, the allele for tall stems (T) is completely dominant to the allele for short stems (t). A second gene located on a separate chromosome determines flower color.

If two species are able to mate and produce an offspring which can mate with itself, but is unable to mate with either parent's species, it is an example of

Polysaccharides always: A. are a string of three or more sugar molecules. B. are polymers. C. contain lipids. D. All of the above are correct. E. Only the first and second choices are correct.

What does neurons do?

An example of interespecific competition is a. two male birds competing for the same female b. two male lions competing to lead the same pride c. two species of big cats competing for the same antelope d. all of the above

One function of the glial cells is to: a. provide nutrients to interneurons. b. control heartbeat and breathing. c. control the muscle movements involved in speech. d. mimic the effects of neurotransmitters. e. stimulate the production of hormones.

Explain how environmental change can lead to adaptation.

Do bigger organisms have bigger cells what kind of test could you do to answer this

A scientist has chosen to study the motion of clouds in the atmosphere during a thunderstorm. Which type of model is most appropriate for her investigation