Will mark brainliest

1) which of the following adaptations in wooly mammoths could have best prevented their extinction?

a) shedding of fur
b) darker color of fur
c) growth of an extra layer of fur
d) increase in the thickness of fur

2) four metals were kept in contact with each other. the table below shows the initial temperature of the metals.

metal initial temperature
a 30 °c
b 42 °c
c 25 °c
d 16 °c

from which metal will heat flow into all the other metals?
a) metal a
b) metal b
c) metal c
d) metal d

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.