What causes the inside of the membrane to reverse charge and begin the action potential?

Which sentence supports the statement that multicellular organisms are made up of specialized cells the each perform different functions for the body A. Human liver cells make protein that promotes homeostasis that neurons do not B.

Which level is most commonly meant by biodiversity

Which of the following are examples of tissue? (Select all that apply.) -blood -the excretory system -nerves -the heart

The birth of natural science can be traced to important assumptions made by thinkers in the aegean basin 2500 years ago. which answer best summarizes these choices?

Definition: These are the components of the reservoirs of oxygen that are exchanged in our environment.

Phosphorescence is a phenomenon associated with which algal division

What are potential sources of error in a experiment?

Does carbohydrate hydrolysis by ptyalin continue in the stomach

How do the circulatory system and immune system work together to respond to an injury?

Ducks and beavers both have webbed feet