Which human activity does not affect the earth system? (1) disposing of toxic wastes (2) converting solar energy (3) clearing land for farming (4) burning natural gas and coal

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Which of the following do all living things have in common