Genetic diversity is required for natural selection to act, but natural selection can reduce or eliminate diversity. what forces restore or maintain diversity of a population?

Which portion of the brainstem serves as the relay center between the cerebrum and the cerebellum? a. The diencephalon b. The mid brain c. The pons d. The medulla oblongata

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra

This is a tissue that makes up most of the fleshy part of the plant. Which does this tissue work with to carry out transpiration

If an original cell has the genetic makeup AaSs. What would the genetic makeup of the daughter cells be?

At which location will you see Polaris at the highest altitude in the sky? A. Sao Paulo, Brazil B. Tampa, Florida C. Montreal, Canada D. Sacramento, California E. Anchorage, Alaska

The carbon cycle describes how carbon moves through the which of the following spheres? Select all that apply. A. Geosphere B. Cryosphere C. Atmosphere D. Hydrosphere E. Exosphere F. Biosphere

According to the video, fossils provide each of the following except: a. Examples of transitional species b. A complete record of past life on Earth c. Physical proof of extinction and speciation d.

What is an arid land?

The famous scientist Galileo Galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. By changing the slope, he could study how the speed at which the ball rolled was affected.

Why do wolves howl at the moon?