Which sources do scientists use to study ancient climates? Check all that apply.

Earth's orbit

tree rings

volcanoes

pollen grains

fossils

Name a substance that the cell needs that the membrane would have to let into the cell?

Protests can be found in

Where is Albert Einstein from?

What happens to raisins or other dried fruits fruits in breakfast cereals when you pour milk over them

A mutation occurs in an original DNA template that changes the DNA, changes the RNA, but does not change the protein sequence. What kind of mutation is this. and what would be the consequence of this original change?

What is the purpose of plant epidermal cells?

What tool is use to measure an objects mass?

Which of the following statements about the electron transport chain is true? a. The proton gradient established during electron transport is a form of potential energy. b.

Which analogy best describes theories? Theories are like rocks because they can change but not easilly. Theories are like tides because they frequently go back and forth. Theories are like time because they are eternal and never change.

What happens at level IX on the mercalli scale?