The populations decrease as you go from the bottom of the food chain to top. Why do you think is so

Select all the true statements about the cosmic microwave background radiation

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis. b. the primary role of microbes on the planet involves causing disease in animals and humans. c. microbes produce vitamins in the intestines. d. microbes play a role in breaking down waste and decomposing dead organisms.