Which relationship below is an example of competitive in an ecosystem? A. Birds eat the insects that cattle dusturb while grazing, and they occasionally ride on the cows' backs.
B. Squirrels nest in an oak tree, and insects live under the ground near the tree.
C. Bald eagles and black bears fish from the same mountain lake.
D. Rabbits eat the grasses and shrubs in a meadow, and wolves eat the rabbits in the meadow.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.

this would be called the responsiveness