How is a lily leaf cell different from a cat's skin cell? a. a lily cell has a cell membrane but a cat cell does not. b. a lity cell has a cell wall but a cat cell does not c. a lily cell has a nucleus but a cat cell does not d. a lily cell has cytoplasm but a cat cell does not

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

The transport tubes from food came down the plant are called?

Isotopes of the same element have differ in their