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.
