Why are area ONE organisms separated from the rest of the organisms in the chain?

Look at the image below. Which organisms feed on the primary level?

Which organisms in the image below would be classified as carnivores (according to this image only)?

Which organism is the quaternary consumer?

Which organisms in the image below would be classified as omnivores (according to this image only)?

The third organism in a food chain is the 

Which organisms in the image below would be classified as herbivores (according to this image only)?

How do social connections affect female reproductive success?

Which of the following statements is true of a proper phylogeny?

Male reproduction is limited by