What is the natural tendency of molecules to move from higher to lower concentration called

What's a cell membrane?

Animal cell, what is the name of structure 4

If the water supply in an environment increases what is likey to happen to the number of organisms

What happens when a cell is dropped in a container full of pure water?

D How did the fossils of sea creatures end up on the tops of mountains? They were lifted high up by the rising sea levels. They were brought up there by other sea creatures. They were pushed up when India crashed into Asia.

Select the correct answer. Jane is obese and suffers from osteoarthritis. What is the likely cause? A. Jane has high levels of triglycerides and LDL, as well as low levels of HDL. B.

What is an advantage of the color patterns on frogs

Which of the following qualities are NOT associated with mineral luster a. opaque b. metallic c. dull d. rough surface

a women who is a carrier of hemophilia, marries a man who is not a carrier. what are the possible genotypes of their children?

Why are communities that are m+re diverse usually more stable?