Natural selection is the process in which the more favorable traits due to mutation that are in a select few in a population produce more offspring then others. An example of this is bacteria resistant to antibiotics due to the faster reproduction of the resistant bacteria over the non resistant ones
The building blocks of proteins are known as amino acids. These acids are not only the building blocks of proteins--they are also important in many other chemical and biological processes.
Echinoderms are most closely related to chordates because both are: <span>D)Ectotherms</span>
I might be wrong but i think is C
Answer:
from 60 to 100 beats per minute
