Steroids, cholesterol, and wax are all examples of?

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

Is dna the same in every cell in the human body explain your answer

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.