Answer:
The correct answer will be option-<em>Trypanosoma brucei rhodanese</em>.
Explanation:
African trypanosomiasis is an insect-borne disease in the African continent which is also known as sleeping sickness.
This disease is named on the basis of a part in which they were found in the continent like the disease found in the east is known as east African trypanosomiasis which is caused by the type of <em>Trypanosoma brucei</em> protozoa called <em>Trypanosoma brucei rhodanese</em> which is carried by the tsetse fly found only in rural parts of Africa.
Thus, option-<em>Trypanosoma brucei rhodanese</em> is the correct answer
both immigration and births add individuals to a population.
Eukaryotic: mitosis: prokaryote: binary fission
Eukaryotic cells reproduce by mitosis while prokaryotes reproduce by binary fission.
Eukaryotes include fungi, plants, and animals and are complex in structure. They have a nucleus, several organelles and more DNA (deoxyribonucleic acid). Eukaryotic cells undergo mitosis; a form of cell division that usually produces two similar daughter cells with the same genetic component as the parent cell. Prokaryotes include bacteria, and archaea, and are quite simple in structure. They do not have organelles or nucleus, but they have only a small amount of DNA. Prokaryotes undergo binary fission; a type of asexual reproduction in which there is replication and segregation of a single DNA molecule.
Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?
a. nondepolarizing
b. depolarizing
c. antagonizing
d. repolarizing
Answer:
a. nondepolarizing
Explanation:
As the nerve impulse arrives, the synaptic end bulbs of the motor neurons release acetylcholine in the synapse. Acetylcholine binds to its receptors present at the motor endplate. This results in the opening of an ion channel in the ACh receptor to allow the movement of the Na+ into the cell. This makes the inside of the muscle fiber more positively charged, that is, depolarized.
Depolarization triggers a muscle action potential. Drugs or chemicals that paralyze skeletal muscle by competitive inhibition of acetylcholine at muscle receptor sites are called non-depolarizing as they do not allow the acetylcholine to facilitate the depolarization of the muscle fiber.
