Which of these is found ONLY in eukaryotes? A)ribosomes

B)chromosomes

C)cell walls

D)endocytosis

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Asap i will reward you brainliest for best which sentence about protists is accurate? all protists are unicellular and microscopic in nature. they have organelles, so protists are eukaryotic in nature. all protists make their own energy through photosynthesis.

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?