Oxygen , Carbon , hydrogen
Answer:
faced a struggle for survival
Explanation:
The woolly mammoths became extinct, unlike the other species, because the woolly mammoths faced a struggle for survival due to changing of environmental conditions. Global warming is the main cause of extinction of woolly mammoth which destroy their habitats about 10,500 years ago. The environmental conditions are not favourable for them so they faced struggle for survival which causes extinction of woolly mammoth.
Answer:
Archaea
Explanation:
Archaea Bacteria are the only bacteria that can adapt in crazy and impossible environments, Such as an underwater Volcano
a. vitamins.
b. everyday.
I'm not 100% sure on b. but a. has to be vitamins.
