Download Unit 2 Ecology Chp 4 Ecosystems and Communities

CHAPTER 4
ECOSYSTEMS AND COMMUNITIES
1. List one main difference between “weather” and “climate”.
Below is a diagram that depicts the “greenhouse effect”.
2. What are the 3 main greenhouse gases?
3. Explain why life on Earth is dependent on this phenomenon.
4. Other than earth, which planet in our solar system has an
extreme greenhouse effect and list the surface temperature of
this planet?
Below is a diagram depicting sunlight striking Earth.
5. With relation to Earth, what are the two phenomena
that cause sunlight to strike Earth at varying angles?
6. How does the difference in sunlight angles affect the
distribution of life on Earth?
7. Label the 3 main climate zones on the diagram.
Below is a diagram representing the “distribution of heat” on Earth.
8. Using this diagram, explain how the poles receive warm
air from the equatorial region.
9. How does this phenomenon affect climate at the poles
and equator and in turn life that exists at these two
locations?
Below is a picture of Serengeti National Park located in the Tanzania area.
10. List 4 biotic factors found in this picture.
11. From the picture, infer 3 abiotic factors of this
ecosystem.
Below is a picture of a Western Diamondback rattlesnake eating a rat.
12. Choose either the snake or rat and describe
its niche.
Below is a diagram of “niche partitioning” or what is also known as the “competitive exclusion
principle”. This concept allows one Spruce tree to support 5 different species of Warblers.
13. Using the concept of this principle, explain how the
Spruce tree can support 5 different species of birds.
14.Below are three pictures representing the three forms of “symbiosis”. Below each picture, describe
the form of symbiosis represented and how the picture depicts this type of symbiosis.
Below is a diagram representing “ecological succession”.
15. What type of succession does this
diagram represent?
16. What is the “pioneer species”?
17. For this diagram to represent the other
type of succession, what would have to be
different?
Below is a diagram representing the “major terrestrial biomes” of Earth.
18. What differentiates one biome from
another?
19. Draw a line representing the equator.
Which biome covers most of this line and
why?
20. Which biome do we live in and what defines this biome?