Ecology

A. individual type II
B. Individual type I
C. individual type III
D. all

A. environment beauty
B. extreme hot environment
C. environmental resistance
D. environmental biotic factors

A. game
B. predation
C. fighting
D. aggression

A. intraspecific competition
B. interspecific competition
C. fighting
D. aggresion

A. dendroica castanea
B. D.tigina
C. D.fusca
D. D.virens

A. coexisting
B. community
C. coevolution
D. coeducation

A. crow
B. bats
C. humming birds
D. sparrow

A. leaves
B. drinking
C. tubular flower
D. smell

A. intraspecific competition
B. interspecific competition
C. coexisting
D. conjugation

A. definitive host
B. weak host
C. strong host
D. initial host