The answer is D. In caste systems you are born into a certain level of society and cannot change that.
There would be a scarce amount of food so organisms will start dying out. Food webs would get messed up.
Answer:
Explanation:
Biodiversity valuation of each species of natural resource
A complete value representing contribution to the system, usage (economically or ecologically), even carbon stock. Do, or could, nature areas keep databases of this information about their species?
question: I need your help
that's quest here
* find the equation of circle which is touches X axis (2,0) and passing through (1,1).
the first plants and anthropodes appear on land approximately about 470 million years ago
