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- Which of the following methods will provide information to an ecologist about both the size and density of a population?
- mark and recapture
- mark and release
- quadrat
- life table
- Which of the following is best at showing the life expectancy of an individual within a population?
- quadrat
- mark and recapture
- survivorship curve
- life table
- Human populations have which type of survivorship curve?
- Type I
- Type II
- Type III
- Type IV
- Species with limited resources usually exhibit a(n) ________ growth curve.
- logistic
- logical
- experimental
- exponential
- The maximum growth rate characteristic of a species is called its .
- limit
- carrying capacity
- biotic potential
- exponential growth pattern
- The population size of a species capable of being supported by the environment is called its .
- limit
- carrying capacity
- biotic potential
- logistic growth pattern
- Species that have many offspring at one time are usually:
- r-selected
- K-selected
- both r-and K-selected
- not selected
- A forest fire is an example of regulation.
- density-dependent
- density-independent
- r-selected
- K-selected
- A country with zero population growth is likely to be .
- in Africa
- in Asia
- economically developed
- economically underdeveloped
- Which type of country has the greatest proportion of young individuals?
- economically developed
- economically underdeveloped
- countries with zero population growth
- countries in Europe
- Which of the following is not a way that humans have increased the carrying capacity of the environment?
- agriculture
- using large amounts of natural resources
- domestication of animals
- use of language
- The first species to live on new land, such as that formed from volcanic lava, are called .
a. climax community
b. keystone species
c. foundation species
d. pioneer species
- A symbiotic relationship where both of the co-existing species benefit from the interaction is called .
- commensalism
- parasitism
- mutualism
- communism
- When an invasive species alters the community structure it is introduced to, what can the consequence be?
- extinction of economically important species
- reduced predation on some native species
- increased predation on some native species
- all of the above
- 2016 reads