6. Which of the following best explains the Big Bang Theory?
A.
a law about how the universe was created.
B.
a guess as to how the universe was created.
C.
observations of how the universe was created.
D.
an explanation of how the universe was created.

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

What class of levers is shown in this image?