In multicellular organisms, groups of tissue form

A. organelles
B. organs
C. cells
D. vacuoles

Compare the composition of the moon's surface with the composition of the earth's surface.

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.

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols