What is the function of nucleus in plant and animal cell​

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

What element does susan b. anthony include in this passage to strengthen her argument?