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

 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 USE GRAPH FOR THE FOLLOWING:

 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! PROPERTIES OF POPULATION

 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 DDLF VS. DILF

 9. Small populations are more likely to have what two events happen?  INBREEDING  EXTINCTION SMALL POPULATION

 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 SYMBIOSIS

 11. Space, food and mates are 3 types of ____________________ _______________?  LIMITING FACTORS!!! ANYTHING THAT LIMITS A POPULATION IS A LIMITING FACTOR. LIMITING FACTORS

 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 COMPETITION

 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. TYPES OF SUCCESION

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

 15. What is an example of ecological succession?  POND CHANGING INTO A MEADOW ECOLOGICAL SUCCESSION

 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 PREDATION