As sound enters the ear, it vibrates the at the boundary between the outer ear and middle ear, causing the sound waves to then vibrate the hammer.
a. ear drum
c. stirrup
b. cochlea
d. anvil

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?