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Which of the following statements reflects control theory?

It is illegal to marry one’s parent, brother or sister.  These laws promote: 

Kyle marries his high school sweetheart.  After a few years, they grow apart and get a divorce.  Kyle meets Cindy and starts dating again.  Eventually Kyle and Cindy marry and have children.  They stay together until Cindy passes away.  Kyle then meets Judy in a grief support group and they end up getting married about a year later.  Kyle’s experience reflects:

Animals can learn behaviors by observing other animals.

Describe 2 distinct characteristics of Aves.

Describe 2 distinct characteristics of the phylum Annelida.

Female rhinos mate often and have at least 1 calf per year, so male rhinos never have difficulty getting females to mate.

Use the Abbreviated Key to the Animal Kingdom below to key out this organism.  Select all steps that apply.  

In the experiment below, both test tubes were filled with yellow phenol red. Test tube A (left) contained a plant, and test tube B (right) did not.                  A         B      After 24 hours, the tubes looked like this:                 A          B        [a]  Which test tube represents the control in this experiment? [b]  What process occurred that made test tube A change color? [c]  Was carbon dioxide used, produced, or not changed in tube A? [d]  Were these tests tubes placed in the light or dark? [e]  Was carbon dioxide used, produced, or not changed in tube B?

Is a kitchen countertop an area that would normally support the growth of microorganisms? If not where would the microbes most likely come from?