11: The Tundra and Interspecific Interactions

Question 1

What is predation?

Answer 1

a member of one species kills and feeds on a member of another species

Question 2

What is an example of predation?

Answer 2

wolf (predator)/caribou (prey)

Question 3

What is herbivory?

Answer 3

consumption of plant material by animals

Question 4

What is an example of herbivory?

Answer 4

caribou (herbivore)/moss (plant)

Question 5

What is parasitism?

Answer 5

close relation between two organisms in which one benefits at the expense of the other but doesn’t necessarily kill it

Question 6

What is an example of parasitism?

Answer 6

tapeworms are parasites of wolves and caribou

Question 7

What is commensalism?

Answer 7

close relation between two organisms in which one benefits, and the other is neither helped nor harmed (neutral)

Question 8

What is an example of commensalism?

Answer 8

arctic fox eats leftovers of the polar bear

Question 9

What is mutualism?

Answer 9

close relation between two organisms in which they both benefit

Question 10

What are examples of mutualism?

Answer 10

1. clownfish/anemone
2. lichen is not a single organism; it is the association of 2 organisms: fungus (provides habitat) and an algae (provides food)

Question 11

What is symbiosis?

Answer 11

relationship between two species that live in intimate contact

Question 12

What are types of symbiosis?

Answer 12

parasitism, commensalism, mutualism

Question 13

What is competition?

Answer 13

relation between 2 organisms that struggle for the same resource

Question 14

What is a resource?

Answer 14

something an organisms needs in order to survive or reproduce (space, food, oxygen, water)
- when a resource is used by one organism, it becomes unavailable to others

Question 15

What is interspecific competition?

Answer 15

between individuals of different species

Question 16

What is intraspecific competition?

Answer 16

between individuals of the same species