Answer:
C
Explanation:
Tetrodotozin is a sodium channel blocker. that is; it prevents the opening of sodium channels in the neuron needed for depolarization and action potential production.
T<u>he voltage gated sodium channels in the nerves and skeletal muscles are blocked, action potential are not generated from these areas,Therefore potassium channels are permanently open leading to hyper polarization, and since sodium channels can not open, they remain in refractory state, this leads to muscular paralysis leading to impairments of respiratory and cardiac functions.</u>
Specifically the paralysis of the diaphragm muscles, lead to collapse of the lungs, preventing breathing,leading to suffocation and death.
This is an example of competitive inhibition;The introduction of cholinergic acetycholine neurotransmitter reverses the blockage of sodium channels
Explanation:
Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive movements. Much of a cell's supply of metabolic energy may be spent maintaining these processes.
Answer:
Segregation.
Explanation:
The Mendel had worked on the pea plant and known as as the father of genetics. Mendel had explained the law of genetics that contains law of segregation, law of independent assortment and the concept of dominance.
The law of segregation states that at the time of formation of gametes, each allele may get separate or segregate from the pairs of alleles and unite to form the zygote. This includes the monohybrid cross. The phenotypic ration of monohybrid cross is 3:1 that explains the law of segregation.
Thus, the correct answer is option (A).
Answer:
Building and repairing cells
