Mr. Furlan Sci.: April 2012

Chapter 21 Study Guide: Populations and Communities

The following Study Guide is for Chapter 21. The test will be on 4/27/2012.

Study Guide Chapter 21:

Test will be on 4/27/2012

Total Point out of 20

· (Adapted from page 734)

Section 21.1:

· Identify that an organism interacts with both living and non-living parts of its habitat.

o Define Abiotic and Biotic Factors (MC)

o Identify if something is Abiotic or Biotic (Short Answer / Table)

· Place Population, Community, and Ecosystem in the correct order (Short Answer)

Section 21.2:

· Identify if a counting of a population is direct or indirect (MC)

· Identify limiting factors for population growth: Food and water, space, and weather conditions.

· Apply the formula for Population Density (2 Problems / Short Answer)

Section 21.3

· Define Natural Selection (MC)

· Define Niche (MC)

· Write out the three types of symbiotic relationships (Short Answer):

o Mutualism, Commensalism, and parasitism.

Main Assignment

Extra Credit / Test Boost Assignment

The following assignment is considered extra credit that will help raise your test score for chapter 18. Remember to follow the study guide! Simply fill out the form and make sure you include your name. If you complete the assignment you will have 5% added to your final test score. Again, this is optional.

CDC (Centers for Disease Control and Prevention) History and Achievements

Main Assignment