Answer:
I believe that it is D.
Explanation:
If ice caps are melting, and polar bears use the ice flows to get their food, then the polar bears can't use the ice to get food. so, the polar bears most likely are expanding their diets to adapt to their surroundings. So, polar bears are probably moving off the sea ice and eating other foods.
Animal because the algae and plant would have to have chloroplast and the bacterium does not have a nucleus as it is a prokaryote.
They provide better depth perception and peripheral vision.
