One difference between plants and animals is that plants are a. prokaryotic and animals are eukaryotic. b. eukaryotic and animals are prokaryotic. c. autotrophs and animals are heterotrophs. d. heterotrophs and animals are autotrophs.

c. autotrophs and animals are heterotrophs

Explanation:

There's many differences between the plants and the animals, be it their physical appearance, way of live, how do they function, their requirements for survival. One of the major differences between the plants and the animals is that the plants are autrotrophs, while the animals are heterotrophs. The autrophs are the organisms that are able to produce their own food, thus they are producers, meaning that they do not need nutrition from other organic sources. The heterotrophs on the other side are the organisms that are not able to produce food for themselves, but instead they get their food through consuming of other living organisms, making them primary, secondary, and tertiary consumers.

not only is it colder, it also becomes darker, less salty, and more dense.

a covalent bond, specfically triple bond