Interactions

Question 1

what is intraspecific? and one types

Answer 1

• interaction within one species
• competition for:
  F ood
  L ight
  A ir
  W ater
  S pace

M ates
S helter

Question 2

what is intrerspecific? and two types

Answer 2

the interaction with multiple species

Preditation

Symbiosis:
C ommensialim

C operation
A amencilism
M utalim
P arasitism

Question 3

What is preditation?

Answer 3

one organism attacks the other for a source of food. This is a short term interaction

Question 4

What is symbiosis

Answer 4

a relationship in which two organisms live in close association over a long period of time. There are five types

Question 5

What is mutualism

Answer 5

both species benefit from theboth species benefit from the obligatory interaction (e.g. Lichen, which is a mixture of fungal and algal cells).

Question 6

What is cooperation

Answer 6

each species benefits from the association, but the presence of one is not essential to the survival of the other (e.g. sea anemones living on the shells of crabs).

Question 7

what is commensalism

Answer 7

one organism benefits and the other is not affected (e.g. epiphytic ferns and orchids on rainforest trees).

Question 8

what is amensalism

Answer 8

one species inhibits the other (e.g. antibiotics produced by moulds inhibit the growth of some bacteria).

Question 9

what is parasitism

Answer 9

parasites obtain food by living in (endoparasites e.g. tapeworm) or on (ectoparasites e.g. flea) a host organism. The parasite benefits but the host is harmed and causes disease.