Answer:Steroids like cholesterol are lipids and have a ring structure
Explanation:
Is there perhaps a pic you can post so we may help you :3 or options
Answer:
Hydrogen bonds
Explanation:
it should be hydrogen bonds, correct me if I'm wrong
I'd say precipitation, it won't be alive though so biodiversity is wrong
Answer:
carbon dioxide raised
Explanation:
The first thing that pops into my head is something my grandpa told me and that was the carbon dioxide levels raised exponentially because of the wailing period. the led to many environmental changes across the globe.