Which one of the following is NOT one of the reasons plants need phosphorus? And
Which one of the following is a reason why animals need phosphorus?

One group of reptiles, characterized by the fossil ark metal x

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

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?