Is Energy Released during Photosynthesis

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

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

18. which statement about cancer is true?