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TLS Online TPP Program

#Question id: 10723

What does the graph tell you about the effect of a keystone species?

#Section 1: Ecology
  1. A keystone species has little interaction with other species in an environment.
  2. Removing a keystone species from the community drastically reduces species richness.
  3. Adding a keystone species to the community will make it more diverse.
  4. Removing a keystone species from the community will eventually allow for the invasion of a new species.
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TLS Online TPP Program

#Question id: 12144

#Section 1: Ecology

Which statement regarding population growth rates is incorrect? 
TLS Online TPP Program

#Question id: 12145

#Section 1: Ecology

If population size is exactly half of carrying capacity: 
TLS Online TPP Program

#Question id: 12146

#Section 1: Ecology

Which of the following is not a density-dependent factor? 
TLS Online TPP Program

#Question id: 12147

#Section 1: Ecology

Climax forests
TLS Online TPP Program

#Question id: 12148

#Section 1: Ecology

If asked to find the cause of regular fluctuations in a population's size not associated with seasonal environmental variation, you would probably first seek evidence for: 
TLS Online TPP Program

#Question id: 12149

#Section 1: Ecology

In a discrete-time population model, which of the following behaviours is associated when 1 < r < 2?