Answer:
Receptors are highly specific and only have high affinity for those ligands for whom they are specific.
Explanation:
Receptors are proteins that receive a stimulus or bind a ligand and mediate effects via receptor effector system.
Receptors are macromolecules that are highly specific.
The affinity between the ligand and the receptors is determind by the disassociation constant Kd.
The receptors produce maximun effect when an appropriate specific stimulus is present.
Different recptors types are present for different ligands.
For example, muscrinic receptors are specific for acetycholine and adrenergic receptors are specific for adrenaline/nor adrenaline.
It is important to know the specificity so that the body remains in a state of balance.
Selective pressures created by environmental factors can lead to success of <span>mutan individuals. So it is D</span>
Answer:
Cilia /flagella aids in movement.
Explanation:
Cilia and flagella helps in cellular movement.Bacteria contain flagella which helps in the propelling of bacteria towards nutrients or away from the waste materials.On the other hand cilia are threadlike appendages that helps in the attachment of bacteria to solid surface.
In human body respiratory system contain cilia which help to move mucus ,dust,germs and polens out of the body.
The tail of human sperm contain flagella which helps in the in the swimming of sperm inside the ovary in search of an egg.
Sweat glands sorry if im wrong not sure
I believe so. Hopefully this helps