Because lipids are fat cells and it is a much easier way to get energy.
A camel has a fat hump because that is it's source of energy <span />
Answer;
A Niche is the role a species plays in the ecosystem while a habitat is the physical environment in which a species lives.
Explanation;
-Each organism plays a particular role in its ecosystem. A niche is the role a species plays in the ecosystem. A niche will include the organism's role in the flow of energy through the ecosystem.
-The habitat is the physical area where a species lives, it is described by the abiotic (non living) factors such as climate, sunlight etc. and the biotic factors (living factors).
Answer:
The nephridium(plural nephridia) is an invertebrate organ, found in pairs and performing a function similar to the vertebrate kidneys (which originated from the chordate nephridia).
Explanation:
hope it will help you
Mexico .. if thats an option