What is the term used by scientists to describe a series of changes and adaptations in groups of individuals.

Evolution.

Evolution is a series of changes that occur to species, which make them better suited to their environment. The changes that occur are normally related to the harsh situations species may encounter in their new habitat.

All species have evolved and changed, from single-celled microorganisms to elephants. Cells for example, where simple organisms and didn't have all the organelles and types they now have. Elephants, also varied a lot in size and appearance.

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BioTeacher101

yes i have all the correct answers

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2. a 7. d. 12. d

3. c 8. b. 13. c

4. d 9. c. 14. d

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17. d.

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photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.