Answer:
It could be embreology. (I think i spelled that wrong)
Explanation:
It is a way to compare the embreos of two species to see the similarities between the two. If there are similarities then they have a common ancestor. If they don't have similarities then they arent from the same family.
Answer: Myelin Sheath. The Myelin Sheath of a neuron consists of fat-containing cells that insulate the axon from electrical activity. This insulation acts to increase the rate of transmission of signals. A gap exists between each myelin sheath cell along the axon.
Explanation:. Myelin can greatly increase the speed of electrical impulses in neurons because it insulates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length. Myelin damage causes several neurological diseases, such as multiple sclerosis.
If there was once a fish there then that would mean the habitat of a fish was once there but dried up. a lake or river or even an ocean could have once been there but dried up and left a fish fossil
The nucleus is an organelle and found in eukaryotic cells that store proteins and RNA. It is known as the largest and important cell organelle. The nucleoid is an unevenly shaped region that stores genetic material and is found in prokaryotes.
