Answer:
Homology is similarity due to shared ancestry between a pair of organisms in different taxa. Both bats and humans have a common mammalian ancestor.
They diverged and adapted their arms for different functions.
Explanation:
Homologous features are physical features shared due to evolutionary history (a common ancestor).
Once you understand this, its pretty simple. 50 hertz= 50 vibrations. 100 hertz=100 vibration. So to answer your question 200 hertz=200 vibrations. Your answer is C.
Sight is the answer a newborn can barley see