What layers are outside of the plasma membrane

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

According to this food web which of the following would be considered primary consumers

Which of the following is a good strategy when it comes to desserts