Answer:
B
Explanation:
You said this is easy, if so why dont you do it lol.
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Produces a replication bubble with a replication fork on each side.
Answer:
The tabby cat has inherited color traits from both parents and shows amixture of both colors
Explanation:
Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.
Superior vena cava- upper body inferior vena cava
lower body- bother drain into the right atrium