Answer:
Oligodendrocytes in the brain and spinal cord and Schwann cells in the peripheral nervous system are specialized types of glia that build the myelin sheaths that surround neurons.
Explanation:
Myelin sheath is an insulating layer, which covers neurons. It is made up of protein and fatty substances. This myelin sheath permits electrical impulses to move very fast along the neurons.
The proteins may assist in the movement of substances by facilitated diffusion or active transport.
The correct answer is tick on a dog.
The parasitic relationship can be defined as the relation in which one organism feeds on the other organism for their nutritional purpose. It can also harm the other organism by any means. Here, tick on the dog is dependent on the dog for its nutritional requirement. This is an example of parasitic relationship between dog and tick.
Sexual dimorphism is the genetic feature of some species that provide differences in the appearance of males and females. Anole species are species of lizards and the species that do not show sexual dimorphism is the green anole lizard. Both genders of lizards have the same appearance.<span />
Answer: 50%
Explanation: just answered this question
