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Compare and contrast life before and after the organ transplant was made

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Nucleic acid certain protein cell membranes certain carbohydrates

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.