During which period did mammals first appear?

a.

Pleistocene

b.

Carboniferous

c.

Cretaceous

d.

Jurassic

Why is the area around the equator considered the warmest part of the Earth?

What event occurs during interphase

how does the relationship between protons, electrons, and neutrons affect the overall charge of an atoms?

Scalp ringworm is very contagious. True False

How does the changing of tertiary consumer affect the food web

Changes in genes within a kind do not form a different kind. true or false

This is the energy that comes to Earth from the sun.

If we increase our food intake, we generally gain weight. nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories.

Who's more likely to survive a bullet wound; a body builder or an obese person?

What is the one characteristic shared by aerobic cellular respiration, lactic acid fermentation, and alcoholic fermentation?