Write a short story that describes an
environmental change and the importance
of genetic variation in helping a species
survive that change. Include characters, a
setting, a climax, and an ending for your
story. Write your story in your Science
Journal. sc.7.L.16.3

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

Cells destroy body cells infected by a virus or bacteria.

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.