It's not a mole, it's a gene flow.
Because our bodies work to fight off unknown substances like bacteria
Burial practices has not lead to significant changes in Earth’s biomes.
Answer: Elastic fibres helps to keep blood flowing onwards away from the heart in an artery
Answer:
Energy that is not used in an ecosystem is eventually lost as heat. Energy and nutrients are passed around through the food chain, when one organism eats another organism. ... In each case, energy is passed on from one trophic level to the next trophic level and each time some energy is lost as heat into the environment.