Question

QUESTION 2

1. Species that have large impacts on community diversity due to their functional role are known as

   	A.	primary producers
   	B.	dominant species
   	C.	foundation species
   	D.	keystone species

4 points   

QUESTION 3

1. In animal communication, what type of signal would likely be best for long term signaling at night for a forest dwelling animal?

   	A.	urine sprayed on a tree trunk
   	B.	bright feathers and a long tail
   	C.	a deep, resonating call
   	D.	a strong electrical burst

4 points   

QUESTION 4

1. A nesting goose will progress through a series of physiological changes and scooping behaviors when a fake egg is placed in front of the nest within reach. What animal behavior idea is manifested by this observation?

   	A.	cognition use
   	B.	fixed action pattern from a sign stimulus
   	C.	imprinting
   	D.	classical conditioning

4 points   

QUESTION 5

1. Which of the following statements about the evolution of behavior is correct?

   	A.	Natural selection will favor behavior that enhances survival and reproduction.
   	B.	An animal will engage in behavior that minimizes reproductive fitness.
   	C.	If a behavior is less than optimal, it will eventually become optimal through natural selection.
   	D.	Innate behaviors cannot be altered by natural selection.

Answer 1

2. Species that have large impacts on community diversity due to their functional role are known as D. keystone species. These species interact with a lot of the animals in the community and hence removal of this species from the community will result in the collapse of the food web or community ecology collapse.

3. In animal communication, the type of signal would likely be best for long term signaling at night for a forest dwelling animal is C. a deep resonating call. This can be seen in the bats which often use the sonic waves to find its way. The forest dwelling animal also uses the same type of mechanism to communicate.

4. A nesting goose will progress through a series of physiological changes and scooping behaviors when a fake egg is placed in front of the nest within reach. The animal behavior idea that is manifested by this observation is B. fixed action pattern from a sign stimulus. By doing this the goose would think that it is rolling its own egg into the nest.

5. The statement that is correct about evolution of behaviour is A. Natural selection will favour behaviour that enhances survival and reproduction. Natural selection always favours any change that helps in the survival of the species and also which helps in the reproduction of its progeny.

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