Most mammals including humans are endothermic. Reptiles and amphibians are ectothermic.
False
Darker skin
Good luck
Answer:
generic variation helps species survive because it gives there offspring there traits to survive
Explanation:
Abiotic factors are factors that include non-living parts of the environment which could be significant or essential to living organisms. Water is a non-living environment and it helps in giving life to plants and other organisms. Thus deemed abiotic.