Answer: Option A and C.
Transport and receptor protein.
Explanation:
Membrane protein are pathway protein that control the flow of materials and information across the cell.
These proteins modify the cell response to the environment. Examples of membrane proteins are receptor and transport protein.
Receptor are protein that receive signal in the cell.
Transport protein are responsible for movement of ions,molecules or materials across the cell and its environment. These two proteins are responsible for modifying cell response to it's environment.
Cant see the following animals
heavy emigration, disease, famine, and war.
Two or more organs form together make organ systems.
<u>Explanation:</u>
The basic unit of living organisms is the cell. Multiple cells makes up tissues and tissues make up organs. Two or more organs make up the organ system.
Human body has several organ systems. The organs that make up an organ system can be internal as well as external. Respiratory system is made up of organs like lungs, nose, pharynx, trachea, diaphragm etc. digestive system is made with organs like liver, small intestine, stomach, mouth , large intestine, pancreas etc.