REVIEW CH 19 and 20

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# REVIEW CH 19 and 20 - PowerPoint PPT Presentation

REVIEW CH 19 and 20. 1. List the types of dispersion of population as pictured above. a . RANDOM b . UNIFORM c. CLUMPED 2. Which type of dispersion is located at regular intervals ? UNIFORM. USE GRAPH FOR THE FOLLOWING:.

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Presentation Transcript
• a. RANDOM
• b. UNIFORM
• c. CLUMPED
• 2. Which type of dispersion is located at regular intervals?
• UNIFORM
USE GRAPH FOR THE FOLLOWING:
• 3. Define carrying capacity then identify which section on the graph represents carrying capacity.
• Carrying capacity is the maximum number of individuals the environment can support. B.
• 4. Which part of the graph represents exponential growth?
• A---- look for the “J” shape
• 5. Of the 3 parts of the graph, decide whether the population: grew, shrank, or stayed the same in the period of time.
• A. grew, b. stayed the same, c. shrank
PROPERTIES OF POPULATION
• 6. Why is age structure important if you were going to study a population? What would it tell you about the future of that population?
• It tells you the various ages of the population and you can use this to help predict the pattern of population growth. A population that has a lot of individuals in child bearing age is much more likely to increase!
• Also remember the other properties of population: size, density, and dispersion!
DDLF VS. DIlf
• 7. Competition and disease are two types of what?
• DENSITY DEPENDENT LIMITING FACTORS
• 8. Weather and natural disasters such as floods and fires are types of what?
• DENSITY INDEPENDENT LIMITING FACTORS
SMALL POPULATION
• 9. Small populations are more likely to have what two events happen?
• INBREEDING
• EXTINCTION
SYMBIOSIS
• 10. List the 3 types of symbiotic relationships and define each.
• PARASITISM- ONE IS HARMED THE OTHER ONE IS HELPED.
• COMMENSALISM- ONE IS HELPED THE OTHER ONE IS NOT AFFECTED
• MUTUALISM- BOTH BENEFIT
LIMITING FACTORS
• 11. Space, food and mates are 3 types of ____________________ _______________?
• LIMITING FACTORS!!! ANYTHING THAT LIMITS A POPULATION IS A LIMITING FACTOR.
COMPETITION
• 12. What is the difference between intraspecific competition and interspecific competition?
• INTRASPECIFIC- 2 OF THE SAME SPECIES COMPETING OVER A RESOURCE
• INTERSPECIFIC- 2 DIFFERENT SPECIES COMPETING OVER A RESOURCE
TYPES OF SUCCESION
• 13. Explain the difference between primary and secondary succession.
• PRIMARY SUCCESSION- IS THE GROWTH OF A COMMUNITY STARTING FROM SCRATCH. NO SOIL INITIALLY. NEVER BEEN ESTABLISHED BEFORE.
• SECONDARY SUCCESSION- REGROWTH OF AN AREA, SOIL PRESENT, WAS ONCE ESTABLISHED THEN A DISTURBANCE HAPPENED SO IT HAD TO START OVER.

14. Which type of model shows how the populations have changed over a period of time?

• DEMOGRAPHIC TRANSITION MODEL
ECOLOGICAL SUCCESSION
• 15. What is an example of ecological succession?
• POND CHANGING INTO A MEADOW
PREDATION
• 16. List 2 predator and prey adaptations.
• PREDATOR- VENOM, SHARP TEETH, SPEED, SENSE OF SMELL
• PREY- MIMICRY, CAMOFLAUGE, FLEE, POISONOUS
• 17. Define mimicry and give an example.
• One species resembles another.
• KING SNAKE AND THE CORAL SNAKE