Name ______Class ______Date ______

Week 27 CCA Review

Plants

1. What are the two different kinds of vascular tissue in plants? Briefly describe each kind.

2. Describe three ways that plants can distribute their seeds. For each method of distribution, describe or sketch an example of a seed that is distributed in that manner.

3. Define the term tropism.

4. Plants exhibit three kinds tropisms: phototropism, gravitropism, and thigmotropism. Fill in the following blanks with the correct tropism.

·  A potted plant growing towards the only window in a room is an example of ______

·  The roots of seeds from our germination experiment growing toward the ground is an example of ______

·  A fern closing its leaves when it is touched is an example of ______

5. Label the parts of the leaf.
Use the following diagram of a flower for questions 6 – 9.

6. Inside which structure is pollen produced? What is the name of this structure?

7. What structure is represented by A? What is its function?

8. In which structure do seeds develop?

9. What are the names of structures G and H?

ECOLOGY

10. Briefly describe the main characteristics (temperature, precipitation, vegetation, etc.) of the following biomes.

  1. Tropical forest
  2. Tropical Savannah
  3. Desert
  4. Tundra
  5. Temperate Woodland
  6. Boreal Forest / Taiga

11. List three types of human activities that can affect the biosphere. For each activity, give one environmental cost and one benefit. (Hint see Chapter 6-1 of the textbook)

12. Which would provide more energy for the owl, the frog or the snake? How do you know?

EVOLUTION

13. Define the terms speciation and geographic isolation. Describe how geographic isolation between two populations of the same species can lead to two populations becoming two different species over time.

14. a. Think of an animal that you know is a predator. What kind of adaptations does it have that make it a good predator?

b. Now, think of an animal that is food for another animal. What kind of adaptations does it have to avoid being eaten?

c. What process helped these species develop these adaptations?

Miscellaneous

15. Answer True or False for the following:

  1. An ecosystem with a lot of different resources will have very little species diversity.
  2. A very diverse population is more likely to survive an ecological disaster than a population without a great deal of diversity.
  3. The process of photosynthesis takes carbon dioxide from the atmosphere and converts the carbon into sugars.
  4. Algae are photosynthetic organisms.
  5. In osmosis, water will flow from a solution with high salt concentration to a solution with low salt concentration.

3