Callahan Unit 2 Ecology Study Guide

Callahan Unit 2 Ecology Study Guide:

Name______

Terms should be defined on pages 15 and 16 in your work packet

1. What is the study of Ecology?

2. When is there zero population growth in species group?

3. When Exponential growth occurs in a population, the graph of that population looks like what type of curve?

4. Draw a graph with an exponential growth in the space below:

5. What are three different ways that populations can increase?

6. What is a carrying capacity?

7. What is the origin of energy in an ecosystem? 8. What are the roles of producers? How do they play a key role in helping an ecosystem?

9. A Snail eating algae is an example of which type? A Producer or consumer? Primary or Secondary?

10. What is Symbiosis?

11. What is a trophic Level?

12. Explain in the space provided the Water Cycle and be able to describe where water vapor in the Earth’s atmosphere comes from.

13. Explain Eutrophication and what it does to the Earth’s water sources:

14. What is Competitive Exclusion?

15. What are some examples of Symbiosis? Commensalism, Mutualism, Parasitism?

16. What is camouflage? How does it help an organism?

17. Define an area with Primary Succession:

18. How does Carbon Dioxide enter the atmosphere? 19. Be able to describe an organism like the Multi-Colored Asian Ladybird beetles, and explain why they can grow so quickly. What would a graph look like of their exponential growth?

20. Define a Density factor and a Density Independent Factor below:

a. Density Dependent---

b. Density Independent---

Be able to draw a graph showing changes over time for a population and define Birth Rates, Death Rates, Immigration, and Emmigration.