You look out the window and see some fish and a frog in a small stream lined by rocks brush some trees and buldings. are you looking at a population or an ecosystem

What heat is removed how does a gas become a liquid

Which type of bond forms between water moleculesstrong bondhydrogen bondcovalent bondpolar bond

Before the can be observed by using a transmission electron microscope, cells are sliced into very thin sections. what disadvantage does this procedure present in the study of cellular parts