Ecology 51-54

Question 1

taxis

Answer 1

response to change in light of heat

Question 2

migration

Answer 2

directed movement of birds, under genetic control

Question 3

operant conditioning

Answer 3

trial and error learning

Question 4

habituation

Answer 4

simplest form of learning, involves a stimulus

Question 5

imprinting

Answer 5

ducklings follow their mother

Question 6

classical conditioning

Answer 6

Pavlov’s dogs

Question 7

visual communication

Answer 7

displays of courtship or aggression

Question 8

maturation

Answer 8

required before some innate behaviors can manifest themselves

Question 9

key stone

Answer 9

a species that a community heavily relies on, plankton

Question 10

dominant species

Answer 10

have the most biomass in a community

Question 11

primary consumers

Answer 11

eat the producers directly

Question 12

secondary consumers

Answer 12

eat the primary consumers

Question 13

inhibition

Answer 13

presence of an existing species squanders another’s

Question 14

facilitation

Answer 14

arrival of a new species makes life easier for another

Question 15

mutualism

Answer 15

when two species interact in a way that benefits each other

Question 16

commensalism

Answer 16

when one benefits, the other is neutral

Question 17

autotroph

Answer 17

produces food for itself

Question 18

producer

Answer 18

produces food for others

Question 19

tertiary consumers

Answer 19

eat secondary producers/consumers

Question 20

biological magnification

Answer 20

swordfish and mercury