Answer:
D) It contains compounds and is therefore a substance
Explanation:
A mixture is composed of multiple compounds.
1. People are not thinking right
2. You can not adapt to your environment
3.
The waxy coating is a lipid that can help prevent excess water loss in dry environments.
You didn't provide us with any statements regarding animal blubber but the reason why mammals that live in the arctic ocean have it is because it helps and keeps them 'warm' - it's a strong insulating factor.
