Question

which of the following is the atomic number of an element that forms basic oxide? a)11 b)19c)15d)18
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Answer 1

Answer:

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. Very young embryos of fish, amphibians, reptiles, birds and mammals show quite similar structure in

the early stages.

ii. As the further growth takes place, they acquire different patterns

iii. The initial similarity between the vertebrate embryos is an evidence that during evolution, there was a

common ancestor for all the vertebrate classes.

iv. This is called embryological evidence for vertebrate evolution.

Answer 2

C is your answer hope its your help full mark me brainliest please