Answer : cathode, protocathode
During an electrochemical reaction, electrons move through the external wire toward the cathode and positive ions in the salt bridge move toward the protocathode.
The microscope is the most important advancement.<span />
Answer:
Mammals
Explanation:
This is because the sperm meets the egg and fertilizes it in a female mammals which occurs in the ovary
The correct answer is D.
The cell membrane is a semi permeable structure, that is, it allows some substances to move to and from the cell but it impedes the movement of other substances. Some proteins are embedded in the membrane of the cell, these serve as carriers for substances which has to enter the cell but which can not pass through the semi permeable membrane of the cell.
Answer:
The males are much larger than the females
