Which statement correctly compares protists to prokaryotes?
the cells of protists and prokaryotes contain nuclei,
the cells of protists have cell walls, but prokaryotes do not.
both protists and prokaryotes are multicellular.
most protists and all prokaryotes are unicellular.

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

What materials must dams have to produce electricity, and what must occur?

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.