ADH acts on the "principal cells" to regulate facultative water reabsorption. ADH regulates facultative water reabsorption, through increasing the water permeability of the principal cells and reducing the urine produced .
Answer: family and order; because members of lower taxon resembles more than that of higher taxon.
Answer:
Explanation:
This is because once a Voltage Gated Sodium Channels closes up after depolarization, they can not be reopened.The transmission of action potential is such a way that they are propagated one after the other in a forward direction, and never backwards. Thus once a sodium channel depolarizes,it closes up, to under go a shot rest.No matter the strength of the next stimulus it will not open. Then the channel ahead of it opens to depolarise to conduct action potential, this again after shut opening closes up for the channel ahead to open. This short period of rest when the sodium channels closes up is called refractive period. However after sometime of rest the rested sodium channels open, from the inactivated stage to conduct action potential.
Answer:
Craniates
Explanation:
Vertebrate animals - representing the subphylum Craniates, as its name implies, are those animals that have as their main characteristic the spine. This structure is responsible for shaping, balancing and protecting the nerve cord.
Vertebrates are a phylum part of chordates, but pay attention, as not every chordate is a vertebrate animal. Vertebrates are fish, amphibians, reptiles, birds and mammals. Hagfish, lamprey, sharks and tuna are an example of chordates that have a spine and can be classified as Craniates.
Answer:
The <em>answer </em>is option A i.e "32%". According to Chargraff's rule, Number of purine (adenine+guanine) = Number of pyrimidine (cytosine+thymine). Hence, the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.
