Group+2+Per+2

Josh & Frank

Page 2 7. The arrows in the diagram below indicate the movement of materials into and out of a single-celled organism The movements indicated by all the arrows are directly involved in People may have gotten this question incorrect b/c the multiple choice was tricky since it included both homeostasis and excretion as 2 separate choices, but the final answer is homeostasis b/c it includes excretion (not only excretion). A good way to study is to review the differences between homeostasis and excretion.
 * 1. the maintenance of homeostasis

8. Which sequence illustrates the increasing complexity of levels of organization multicellular organisms?
 * 1. organelle - cell - tissue - organ - organ system - organism

9. Which set of terms best identifies the letters in the diagram below?
 * 3. photosynthesis - organic molecules - respiration

10. In a cell, information that controls the production of proteins must pass from the nucleus to the
 * 4. ribosomes

11. Which structures are found in every living cell?
 * 1. a plasma membrane and cytoplasm