Which niche is a large niche a species occupies in the absence of a competitor?

As we move from lower trophic levels to higher trophic levels, the amount of energy available-

Competition is more likely to happen between two native species. 

Look at the image below. What is the name of the viral cycle below? lysogenicycle2.png

Look at the image below. This represents a ____.  euglena1.png

Which of the following is an example of a photosynthetic protist?

With what structure do Paramecium use to move?

What is represented by this image? crypticcoloration.png

Which infectious agent is composed of protein only? 

Look at the image below. At what levels does the rabbit feed? foodweb6.png