This mating system is thse one most commonly seen in animals. Males attempt to mate with as many females as possible and rarely form a lasting pair bond. 

#Question id: 4621

#Section 2: Evolution

DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. The most likely explanation for this result is that

#Question id: 11178

#Section 4: Behavioural Ecology

At low population densities

#Question id: 3491

#Section 4: Behavioural Ecology

Some dogs love attention, and learns that if he barks, he gets attention. Which of the following might you use to describe this behavior?

A) The dog is displaying an instinctive fixed action pattern.

B) The dog is trying to protect its territory.

C) The dog has been classically conditioned.

D) The dog's behavior is a result of operant conditioning

E) The dog is displaying controlled by external stimuli

#Question id: 10681

#Section 2: Evolution

Which of the following is not condition for commensalism?

#Question id: 3382

#Section 2: Evolution

Researchers in the Netherlands studied the effects of parental care giving in European kestrels over 5 years. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six), and enlarged broods (seven or eight). They then measured the percentage of male and female parent birds that survived the following winter. (Both males and females provide care for chicks.) Which of the following is a conclusion that can be drawn from this graph?