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Fill in the blank in each of the following statements.
1. The largest organisms on earth are the ___________________________________________.
2. Plants are thought to have evolved from __________________________________________.
3. The earliest fossil evidence of land plants dates to the __________________________________ Period.
4. ______________________________ is plant tissue involved in structural support and water conduction.
5. ______________________________ is plant tissue which functions in food conduction.
6. All vascular plants have these three structures. ______________________________________________
7. ___________________________ are nonvascular plants in the Division Bryophyta.
8. Asexual reproduction in plants is often called ______________________________________________.
9. All living things are dependent either directly or indirectly on the energy produced by the process of ___________________________________.
10. These three elements comprise the bulk of a plant. _________________________________________.
11. The __________________________________ is the part of the cell wall that cements plant cells together.
12. The inner portions of plant cells are connected with passages through the cell wall called ______________________________.
13. ___________________________________ is the major component of primary and secondary cell wall layers.
14. On average, the chloroplast density on the surface of a leaf is about _______________________________.
15. The complex mixture of enzymes and water inside a chloroplast is called _____________________________.
16. Chloroplasts create energy through ____________________________________ and mitochondria generate energy through ________________________________.
17. Chloroplasts contain DNA. This DNA takes the shape of _________________________________.
18. All plants have __________________________________ cells.
19. The term __________________________________ is applied to organisms that can make their own food.
20. Cellulose is a polymer composed of molecules of the sugar _______________________________.
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