Chapter 8 Flashcards
(12 cards)
What are some ways animals communicate? (5x)
visual, audible, tactile, electrical, chemical
What behavior within a population increases fitness?
Cooperation
What is an endotherm?
an organism that uses metabolism to create its own heat
What are the pros/cons of being an endotherm?
active in a wider range of temperatures, survive a smaller range of temperatures
What is an ectotherm?
an organism that regulates temperature via methods other than metabolism
What are the pros/cons of being an ectotherm?
active in a smaller range of temperatures, survive a wider range of temperatures
What is an autotroph?
an organism that captures energy from its environment (plants)
What is a heterotroph?
an organism that captures energy from other organisms (animals)
What are some examples of density-dependent factors? (4x)
competition, predation, disease/parasites, waste accumulation
What are some examples of density-independent factors? (3x)
Extreme weather, natural disasters, human activity
What are some examples of interspecies relationships? (5x)
competition, predation, parasitism, mutualism, commensalism
What is a keystone specie?
A species with great importance to the balance of the ecosystem.
