The basic solar nebular disk model (SNDM), developed by Russian astronomer Victor Safronov, and was made available in English in the early 1970's. So your answer is B.<span />
The head will face the air because it is hydrophilic. The tails are hydrophobic
Answer:
The correct option is B. Prokaryotic
Explanation:
A prokaryotic cell can be defined as a cell which is unicellular and does not have any membrane-bound organelles present in it. Scientists claim that the earliest form of life was in the form of prokaryotic cells. The bacteria and archaea bacteria come under the category of prokaryotes.
The prokaryotic cell lack a nucleus. It's DNA material is present in a region called the nucleoid inside the cytoplasm of the cell.
Answer: Correct options B, D and E.
Explanation:
In the cladogram, we can see that in the first branch we have a division, one branch goes to fish and the other goes to a division (a division means a common ancestor)
Then the fish are the most primitive (being directly related to the first ancestor)., E is true.
We also can see that between fish and birds we have 3 separations (the ancestor in common is 3 "generations" behind), and between frog and birds we have two separations (the common ancestor is 2 "generations" behind), so frogs are more closely related to birds than fish.
So D is also true.
We also can see that the only pair that has only one ancestor in common are birds and reptiles, so the ones that are most closely related are birds and reptiles. B is also true,
sclera choroid, <span>also known as the choroidea or </span>choroid<span>coat, is the vascular layer of the eye, containing connective tissues, and lying between the retina and the </span>sclera<span>.</span>
