What is the function of the bacterial flora that inhabit the large intestine?

What are two reasons for why a species might disappear from the fossil record?

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms