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_________ of neurons allow them to transmit signals away from the cell body. 

How are some bacteria able to be metabolically active in hot springs that most organisms cannot withstand? 

Proteins found within the membrane are amphipathic. The part facing the fatty acid chains of the phospholipids would be ______________ and the part facing the inner and outer cell would be ______________. 

Organisms are described as “open systems” in thermodynamics. What does this mean?

________ are leaflets of tissue that control the flow of blood from the atria to the ventricles. 

Which of the following is a type of vaccine? 

The uterine lining is called the __________.

Sperm form in the __________ and are stored in the _____________.

Which of the following processes includes all the others in the list?

Aquaporins are transport proteins that allow water to enter cellular membranes.