Answer:
Cranial capacity increased the most from 2 million years ago to the present.
Explanation:
The rate of change is greatest between 2 million years ago and the present.
Answer:
Its A.
Explanation:
Correct on gradpoint my dooods!
Answer:
Gravity.
Explanation:
Without air, living organisms would suffocate and die.
Without water, living organisms would dehydrate and die.
Without energy, living organisms would die instantly.
Without space, living organisms would be squished together and die.
The only logical answer left is gravity.
The monomer must be able to form stable covalent chemical bonds between units in order to polymerize.