Answer:
B
Explanation:
facilitated diffusion requires an ATP, which means it DOES take up energy
Polar bears are listed in red as they are belong to Endangered Species. These species are gonna extincting due to gradual changes by environmental factors.
Answer:
Explanation:
a is always true no matter what
Answer:
a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
Explanation:
