Grade 6 Biology & genetics worksheet

What is on the worksheet

1. Cells and cell structures: which term fits this description? An organelle that carries out photosynthesis in plants and algae.

   1. Active transport
   2. Tissue
   3. Chloroplast
   4. Chromosome

2. Ecosystems and interactions: which term fits this description? A single sequence showing transfer through feeding relationships.

   1. Abiotic factor
   2. Commensalism
   3. Food chain
   4. Population

3. Cells and cell structures: which term fits this description? A membrane-bound compartment used for storage and other functions in cells.

   1. Osmosis
   2. Vacuole
   3. Chromosome
   4. Eukaryote

4. Ecosystems and interactions: which term fits this description? A community of organisms together with its non-living environment.

   1. Ecosystem
   2. Natural selection
   3. Carrying capacity
   4. Population

5. Ecosystems and interactions: which term fits this description? All interacting populations in an area.

   1. Commensalism
   2. Community
   3. Food chain
   4. Adaptation

6. Is water temperature a living or nonliving environmental factor?

7. Cells and cell structures: which term fits this description? The cellular structure where proteins are assembled.

   1. Cell wall
   2. Ribosome
   3. Osmosis
   4. Chloroplast

8. Cells and cell structures: which term fits this description? Membrane transport that requires energy to move substances against an electrochemical gradient.

   1. Active transport
   2. Osmosis
   3. Gene
   4. Vacuole

9. Ecosystems and interactions: which term fits this description? The loss of all living members of a species.

   1. Biotic factor
   2. Food chain
   3. Extinction
   4. Natural selection

10. Cells and cell structures: which term fits this description? The net movement of water across a selectively permeable membrane toward lower water potential.

    1. Vacuole
    2. Osmosis
    3. Mitochondrion
    4. Prokaryote

11. Explain why decomposers matter even though they are often left out of simple food chains.

12. Cells and cell structures: which term fits this description? A relatively rigid layer outside the cell membrane in plants, fungi and many microbes.

    1. Cell membrane
    2. Cell wall
    3. Vacuole
    4. Organ

13. Why is a food web often more informative than a single food chain?

14. Ecosystems and interactions: which term fits this description? An organism that breaks down dead organic material and wastes.

    1. Decomposer
    2. Carrying capacity
    3. Extinction
    4. Producer

15. Ecosystems and interactions: which term fits this description? An interaction in which one organism benefits while harming its host.

    1. Parasitism
    2. Adaptation
    3. Community
    4. Extinction

16. Ecosystems and interactions: which term fits this description? An interaction in which organisms seek the same limited resource.

    1. Natural selection
    2. Community
    3. Competition
    4. Parasitism

17. Cells and cell structures: which term fits this description? Regulation that keeps internal conditions within a workable range.

    1. Homeostasis
    2. Cell membrane
    3. Osmosis
    4. Cytoplasm

18. Ecosystems and interactions: which term fits this description? A non-living environmental influence such as temperature or light.

    1. Consumer
    2. Extinction
    3. Abiotic factor
    4. Adaptation

19. Cells and cell structures: which term fits this description? A group of organs cooperating in major body functions.

    1. Tissue
    2. DNA
    3. Cytoplasm
    4. Organ system

20. Ecosystems and interactions: which term fits this description? An interaction in which one organism benefits and the other is not substantially affected.

    1. Extinction
    2. Commensalism
    3. Carrying capacity
    4. Conservation