Diffusion is the tendency of molecules to move

A) from a lower to a higher concentration

B) down their concentration gradient

C) into a cell by endocytosis

D) out of a cell by exocytosis

Hurricane Hugo had a big impact on the parrot's status. Describe how the population has changed and why.

Why would a cell need a cell membrane?

In the majority of less developed countries, the major source of energy for domestic use is which of the following

Which of these processes is an example of hydrolysis? A) conversion of glucose units into starch B) conversion of fructose and glucose units to form sucrose C) conversion of cellulose into glucose units

Which of the following would become a positive ion before bonding? sulfur helium carbon calcium

Which of these is NOT true of cells? 1. they are much like empty atoms 2. they were first discovered in the 1600's 3. they can be found in pond water 4. they contain a huge array of working parts

Which type of limitng affects a large population more than it effects a small population

What is the systemic circulatory shock and how does it affects absorption?

Three cells are placed in three solutions of different concentrations. Determine the concentration of the solutions based on the predominant movement of water molecules through the cells.

If an rna-based virus like the one we have here were to be considered a living thing, make an argument as to why the virus's rna would be considered its primary source of heritable information.