I believe the answer is protein
A Rock Hyrax or Rock Rabbit are closely related to elephants As will as Dugong which a species of manatees
There are three processes of aerobic cellular respiration; glycolysis, the Kreb's cycle and the electron transport train. The electron transport train synthesises the most ATP.
Covalent bonds are the strongest chemical bonds. They are chemical bonds in which electrons are shared between atoms.
Answer:
Ribosomes, Cell membrane
Explanation:
Ribosomes can be described as structures which are involved in the production of proteins. Ribosomes are hence known to be the protein manufacturing units of a cell. As enzymes are also proteins,they will be synthesized in the ribosomes.
Cell membrane can be described as the membrane which is present outside the cell or which separates the cell from the external environment.
For an enzyme to pass through the external environment, it will have to pass through the ribosomes and the cell membrane.