I think its A
A dog will bark at animals and cars, but only if the environment permits.
-Seth
<span>coacervates > heterotrophic prokaryotes > chemosynthetic prokaryotes > photosynthetic</span>
C. A wall of stones and mortar
This would act as a model describing the cell membrane.
Explanation;
A cell membrane is made up of a phospholipid bilayer with embedded proteins.
A cell membrane hold the different components of the cell together and to protect it from the environment outside the cell. It acts as a boundary between the inside environment and the outside environment of a cell.
It regulates the materials that enters and exits the cell; through selective movement of substances in and out of the cell.
Answer:
The substances used in the beginning of a chemical reaction are called the reactants and the substances found at the end of the reaction are known as the products.
Explanation:
