Answer:
is about 4.6 billion years old
Answer: I believe <u>option A.</u> is correct.
Explanation: When you look at both the cells, you see that cell A. shows the molecules diffusing in and out of the cell membrane. Where as, cell B. doesn't show as much.
Hope I could help! :)
Answer:
Cochlear duct.
Explanation:
The mammalian ear is divided into three parts- outer ear, middle ear and inner ear. Ear is an important organ of the body responsible for maintaining the body's equilibrium.
The cochlear duct is well known as scala media. The cochlear duct is present between the perilymphatic chambers. This duct is interconnected at tip of the cochlear spiral.
Thus, the answer is cochlear duct.