The woolly mammoth was a relative of modern elephants that lived in the cold, northern parts of the world less than five million years ago. Mammoths in warmer parts of the world lacked the warm, shaggy fur the woolly mammoth developed.

Which of the following sentences best describes how natural selection resulted in the woolly mammoth?
A.
Mammoths used their hair follicles to grow fur more often, resulting in stronger hair follicles.
B.
Mammoths with thicker fur were more successful at surviving and reproducing in cold climates.
C.
Cold climates triggered the growth of thick, warm fur on mammoths.
D.
Mammoths stopped shedding. Eventually, they lost the ability to shed fur.

Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic

Which structure in the cardiovascular system connect arteries to veins?