The thin membrane that divides the outer ear from the middle ear is known as

cochlea
eardrum
pinna

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

The body uses fight or flight as a way of defending itself from stress. question 2 options: true false

Viruses ) manufacture their own atp, proteins, and nucleic acidsb) use the host cell to copy themselves and make viral proteinsc) use the host cell to copy themselves and then viruses synthesize their own proteinsd) metabolize food and produce their own atp