Which feature provides structure and form to plants? a. plants have an exoskeleton, like insects. b. plants have an internal skeleton of bones. c. plants have rigid tubes made of cellulose. d. plants have an external covering that keeps them upright.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

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