Answer:
This happens because viruses mutate and vary according to the environment they face. That is why different strains occur and appear every day, which must be updated in the vaccines, in order to have immunity up to date and keep up with the viral mutation without making us sick.
Explanation:
Viruses are acellular structures that do not have their own metabolism or replication method, it is because they must dominate and invade the human body so that its DNA or RNA is coupled to the human and this uses the human machinery to be able to replicate.
On the other hand, as infections occur and viruses appear, they can associate with bacteria forming bacteriophages, they can mutate within an organism that is infected by more than one viral infection and they can even adopt retrovirus mechanisms, which day by day. These new viruses are called as new strains, which evolve and will have to be coupled with vaccines.
Vaccines are a method of natural ACTIVE immunity, that is, part of the virus is inoculated, so that it generates the formation of a specific antibody in the body.
The answer is Negative charges on phosphate groups repel each other. The oxygen groups of a phosphoanhydride in ATP have electron cloud that repels each other. On hydrolysis, once a phosphate is lost, the electrostatic repulsion is reduced.
When ATP is hydrolyzed, it forms more hydrogen bonds with surrounding water molecules that when ATP is unhydrolyzed. Therefore, more energy is released since more bonds are formed than are broken. The net delta G is positive during hydrolysis of ATP.
The cytoplasm contains organelles. The organelles in this list surrounded by the cytoplasm would be the endoplasmic reticulum, lysosomes, and vacuoles. The cell wall and cell membrane are outside the cytoplasm. The nucleus would also be considered in the cytoplasm. If it's talking about a human cell, then chloroplasts would not be in the cytoplasm. Only in plant cells.
Answer: B/C/E/F and possible A if its talking about a <u>plant cell</u>
The answer is OCULOMOTOR NERVE.
<span>The oculomotor nerves are the motor nerves of the eye. In other words, they innervate the various ocular muscles and order them, if necessary, to contract to move the eyes, the upper eyelid ... There are three pairs of oculomotor nerves:
*The common oculomotor nerves.
*The pathological oculomotor nerves.
*The external oculomotor nerves.
</span>
The answer could not be optic nerve because damages to this nerve cause cecity.
