Agraduate student finds an organism in a pond and thinks it is a freshwater sponge. a postdoctoral student thinks it looks more like an aquatic fungus. how can they decide whether it is an animal or a fungus?
a) see if it reproduces sexually.
b) determine whether it is unicellular or multicellular.
c) look for cell walls under a microscope.
d) see if it is a eukaryote or prokaryote.

C) Look for cell walls under a microscope.

Explanation:

It can be decided wheter it is an animal or a fungus by looking for cell walls under microscope.

As the animal cells lack cell wall ( outer membrane is just the cell membrane ) while the fungal cells contain a proper cell wall (surrounding their cell membrane )containing chitin.

Hence C) Look for cell walls under a microscope is the right option.

As both the cells reproduce sexually , option A is excluded.

Both the animal and the fungal cells are multicellular , option B is also excluded.

Both of these organisms are eukaryotes , hence option D is also excluded.

but there is no

i guess you forgot putting it.

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )