Interactions Between Organisms

Question 0

What is intraspecific competition?

Answer 0

Compete for resources with same species

Question 1

What do organisms compete against each other for?

Answer 1

Similar ecological niches - where live and what feed on

Question 2

What is interspecific competition?

Answer 2

Organisms compete for resources with another species

Question 3

Why does intraspecific competition have a bigger impact?

Answer 3

Same species have exactly same needs - food, shelter, mate

Question 4

Give example of how population is limited by amount of food available

Answer 4

Prey increases, so does population of predators. Predator increase leads to decrease in prey. Cycle continues!
Check graph p. 78

Question 5

Explain examples of how parasites have interactions with organisms

Answer 5

Live off host, take without giving anything back.
Tapeworms absorb nutrients causing malnutrition.
Fleas on dogs are parasites

Question 6

Give example of mutualistic interactions

Answer 6

Both organisms benefit
Oxpeckers eat pests on buffalo (flies, maggots) but also alert if predator appears by hissing!
Bees pollinate plants, but also get nectar