Answer:
Carrier proteins are involved in facilitated diffusion and active transport of substances out of or into the cell (e.g. diffusion of sugars, amino acids and nucleosides, uptake of glucose, transportation of salts, glucose, amino acids, etc.).
Explanation:
Answer: Option D
Explanation:
The sensory information that is entering from the dorsal ramus of the body is most likely to come from exteroreceptors on the back.
Exteroreceptor are the different afferent nerve endings that has the ability to sense stimuli which originates from the outside of the body such vibration, sound, pain, touch et cetera.
These receptors carry signals from the external back to the dorsal ramus of the spinal cord.
phospholipids, glycolipids, and sterols
Neurogenesis
As recently as two decades ago, scientists believed we were born with all the neurons we would ever have. But the discovery of neurogenesis occurring in certain brain areas in monkeys gave rise to the hope that someday scientists will be able to induce the adult human brain to heal itself.
Neurogenesis is the process by which new neurons are created and developed in the brain. The new neurons are created by neural stem cells and it happens in almost all species of animals. Neurogenesis is effectual during embryonic development and completely through adult life in different organisms.
