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.
A : DNA in the nucleus of the egg controls all cell activities
You should ask your teacher to be sure, but I think that you teacher meant like the mode of transmission.... Like genetically inherited and such.
I’m not sure but it might be the third one
The correct answer is B. Prokaryotes do not have a nucleus, while eukaryotes do.