Which is an example of a competitive relationship?

a.
barnacles living on a whale's back feeding on particles in the water

b.
fungus growing around plant roots causing them to grow better

c.
saguaro cactus and sagebrush both needing water in the desert

d.
tapeworm feeding off the nutrients within a human's intestines

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl