A snake species a grass species and a mouse species are part of a food web in an ecosystem rank these three species in their likely order in a biomass pyramid from lowest to highest

The process by which the brain reorganizes itself throughout development is termed:

If action potentials are all-or-nothing, then how is the intensity of the stimulus coded into action potentials? a. Intense stimuli produce more intense action potentials b. Intense stimuli produce higher frequency of action potentials c.

Which is true of hydroxide ions? a.) they contain two hydrogen atoms b.) they are not found in pure water c.) they dissociate to form protons d.) they have a negative charge

How do muscles move blood through the circulatory system

A chemical bond a. is physically broken. b. holds protons together. c. holds atoms in a molecule together.

Which cells are more complex? (circle your answer) A. prokaryotic cells B. eukaryotic cells

Breathable air and drinkable water are

What is adenosine triphosphate?

What are the advantages of Using Both Types of Reproduction

Question for 5 pints. do producers give off or take in carbon dioxide? how do you know?