APES Unit 3
1. An organism that spends part of its life cycle in/on another organism, eventually killing it.
Selected:e. parasitoidThis answer is correct.
2. Growth pattern that shows initial fast growth but slows and then hovers around the carrying capacity
Selected:v. logistic growthThis answer is correct.
3. The number of babies born to each woman in a given country on average.
Selected:b. total fertility rateThis answer is correct.
4. A resource that, based on its scarcity, limits population growth
Selected:o. limiting resourceThis answer is correct.
5. The predictable changes in an ecosystem after a disturbance has killed off most living things but the soil still remains.
Selected:a. secondary successionThis answer is correct.
6. A factor that has a greater effect on very dense populations.
Selected:x. density-dependent factorThis answer is correct.
7. To avoid competition, populations may choose to specialize on a particular type of resource.
Selected:ae. resource partitioningThis answer is correct.
8. Survivorship pattern that shows mortality rate as a constant decline throughout the various life stages.
Selected:n. Type II survivorshipThis answer is correct.
9. Species that have long life spans, few offspring, and tend spend a lot of time and energy caring for their young.
Selected:af. K-selected speciesThis answer is correct.
10. A metric used to predict the time it will take a population to double, based on their current growth rate.
Selected:ag. doubling timeThis answer is correct.
11. When an organism moves into a new population
Selected:r. immigrationThis answer is correct.
12. A population where different groups are separated but individuals may occasionally or regularly move between them.
Selected:f. metapopulationThis answer is correct.
13. Interaction between organisms that live in close physical contact to one another.
Selected:d. symbiosisThis answer is correct.
14. A limiting factor that will affect a population, regardless of its density.
Selected:z. density-independent factorThis answer is correct.
15. The number of births in a given calendar year per 1000 people
Selected:i. crude birth rateThis answer is correct.
16. The total valuation of all goods and services produced by a nation in a year.
Selected:t. gross domestic productThis answer is correct.
17. An organism whose niche includes forming habitats for other organisms, or redistributing nutrients or soil composition.
Selected:u. ecosystem engineerThis answer is correct.
18. The change in population size over a period of time (usually 1 year)
Selected:ai. growth rateThis answer is correct.
19. Interaction between two species where one organism benefits from the reaction and the other is unaffected
Selected:h. commensalismThis answer is correct.
20. The average number of individuals of a particular population that an area can support.
Selected:ah. carrying capacityThis answer is correct.
21. The predicatable changes in population growth as country becomes more economically developed
Selected:aa. demographic transitionThis answer is correct.
22. The overall total of movement of individuals into or out of the population
Selected:ac. net migrationThis answer is correct.
23. Growth pattern that shows a population was living under ideal conditions
Selected:w. exponential growthThis answer is correct.
24. Graphical representation of the age and sex distribution of individuals in a population at a given time
Selected:g. age structure diagramThis answer is correct.
25. Organisms that tend to have shorter lifespans, produce many offspring at once, and spend little to no time with their young.
Selected:l. R-selected speciesThis answer is correct.
26. Population pattern that illustrates high survival throughout their life, and high death rates in old age.
Selected:y. Type I survivorshipThis answer is correct.
27. An interaction between organisms where one is gaining resources and the other is harmed in the process
Selected:ad. parasitismThis answer is correct.
28. A measure of the number of deaths over a years time per 1000 individuals
Selected:p. crude death rateThis answer is correct.
29. When organisms attempt to occupy the same niche and compete for the same resources, eventually one group will be driven to extinction.
Selected:s. competitive exclusionThis answer is correct.
30. The overall decline in fitness of a population as the offspring are produced from related or genetically similar individuals.
Selected:k. inbreeding depressionThis answer is correct.
31. Type of organism that is hardy and able to grow in harsh conditions with very few resources
Selected:ab. pioneer speciesThis answer is correct.
32. The movement of individuals out of a population
Selected:c. emigrationThis answer is correct.
33. The predicatable change over time that an ecosystem will undergo as it progresses in biodiversity from bare rock to a climax forest.
Selected:j. primary successionThis answer is correct.
34. Population pattern that results when juveniles experience a very high mortality rate but the ones that survive, then tend to live until old age.
Selected:m. Type III survivorshipThis answer is correct.
35. Interaction between organisms in close contact where both organisms benefit from the interaction.
Selected:q. mutualismThis answer is correct.