What type of organism did Skou use to study the sodium potassium pump because they had large nerve fibers? a) Rats

b) Human

c) Lady bugs

d) crabs

please help <3

D.

Explanation:

I looked it up and the first thing I saw was Crabs. I hope this answer helps. :)

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic