Answer:
The cornea is the only part of a human body that has no blood supply but gets oxygen directly from air
<span>Pacinian corpuscles are rapidly adapting mechanoreceptors so they respond only at the onset and offset of the stimulus. The Pacinian corpuscle has a single afferent nerve fiber. Its end is covered by a sensitive receptor membrane whose sodium channels will open when the membrane is deformed in any way. Pressure thus causes sodium to enter the neuron and create a generator potential. If this potential reaches a certain threshold nerve impulses are formed. This impulse is now transferred along the axon with the use of sodium channels and sodium/potassium pumps in the axon membrane. The magnitude of the stimulus is encoded in the frequency of impulses generated in the neuron. So the more massive or rapid the deformation of a single corpuscle, the higher the frequency of nerve impulses generated in its neuron.</span>
Genetic drift
- initially from same species however due to natural circumstances some of the species relocates resulting in them evolving based in surroundings hence the process of natural selection; the survival of the fittest
Genetic bottleneck
- due to a natural disaster or crisis a species almost becomes no existent resulting in the remaining organisms of such species to repopulate resulting in only the fittest organisms of that species surviving hence once again the process of natural selection
The greatest way to explain natural selection is Darwin in the Galapagos island with the finches; Darwin studied these birds and discovered based on geographical location the same species of bird had evolved as identified by the change in beak structure in order to scavenge for food. The best way to explain it is the survival of the fittest same with long neck giraffes all the short neck giraffes died off due to them not being able to reach the leaves to eat
Mono you can not get mono through drinking water and it’s a disease
Cell wall- around the cell
Cell membrane- in the cell wall
Vacuole- large storage area
Nucleus- protects nucleolus
Nucleolus- inside of nucleus
Cell membrane- surrounds nucleus as protection
Chloroplast-makes plant green
Mitochondrion-produces energy
Ribosomes-converts amino acid