What happened during the Pleistocene to cause global cooling?

A) fossil fuel consumption

B) low solar activity

C) a shift in earth's orbit

D) breakup of Pangaea

Which of the following correctly describes the importance of the nitrogen cycle? to recycle oxygen-based compounds to replenish nitrogen in the atmosphere to decompose dead plant matter to replenish gases required by plants

Once water vapor has been released into the atmosphere, it rises and cools, turning back into a liquid. What is this process called?

How does earth's rotation affect life on earth?

A woman with a long history of rectocele has perineal scarring from multiple episiotomies and has developed a rectovaginal fistula with perineal body relaxation.

What types of organisms were placed into the kingdom fungi?

Why is the action of phagocytes considered a nonspecific response? A It does not occur at any specific temperature. B It is not involved with the production of any specific type of lymphocyte. C It does not respond to any specific type of hormone.

Which statement best describes the relationship between the deer and the plants?

A decrease in honey population will ...

Viruses cannot reproduce on their own and require a host organism to do it for them. This is one reason viruses are not considered to be alive

If the environment changes what is the first thing a species will do to survive