What are the symptoms of Tay-Sachs disease? How do you treat Tay-Sachs?

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

Describe characteristics of a good respitory surface

Produce proteins by following coded instructions that come from the nucleus of the cell.