Why are such different animals as fish, amphibians, reptiles, birds, and mammals grouped into a single phylum?

What is earths rate of revolution?

How do ants destroy plants

There is an ecosystem that gets abundant sun, moderate temperatures and regular rain. What might you expect in this ecosystem? A. The diversity of microorganisms is likely very low. B. Soil quality is likely very poor. C.

Think about a food web in a marine, fresh water, or terrestrial ecosystem. Describe a producer-consumer relationship, a predator-prey relationship, and a parasite-host relationship within the food web.

The alleles for a trait are called

How do scientists obtain knowledge about the world? Check all that apply.

What would the temperature of the surface be if the Earth did not have an atmosphere?

How would the lack of water affect cellular respiration?

Different types of normal tissues in the human body have different mitotic indices. From the following list, which normal tissues would you expect to have the highest mitotic index: muscle, skin, kidney, or lung? Explain your answer.

A group of scientists decided to post their research results on the Internet instead of publishing in a scientific journal. What part of the scientific process have they skipped and why does it matter?