Photosynthesis uses carbon dioxide and outputs oxygen while cellular respiration takes in oxygen and outputs carbon dioxide.

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explanation:

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in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.