realationships

Question 1

SYMBIOSIS

Answer 1

means living together

a close relationship that benefits one or both species

the organisms involved may
+ benefit
o be unaffected
- negatively impacted

just means ‘relationships’

Question 2

MUTUALISM

Answer 2

++

both organisms benefit

e.g. the bee and the flower (bee gets pollen, flower gets its seeds spread)

Question 3

PARASITISM

Answer 3

-+
the close association of two or more dissimilar organisms where the association is harmful to at least one of them

• one Organism derives benefits at the expense of the host
• the parasite may live in and on the host
• the parasite cannot live independently
• for example fleas on tiger, the fleas gets food and tiger get sick

Question 4

COMMENSALISM

Answer 4

+ o

one species benefits and the host isn’t affected positively or negatively

e.g. the turtle and the barnacle, the barnacle lives on it and it doesn’t do anything to the turtle

Question 5

COMPITIONS

Answer 5

where both species are negatively affected as they are competing

Question 5

intraspecific

Answer 5

same species
fighting for a mate (example)
food, water, space, resources.

Question 6

interspecific

Answer 6

different species

nesting sites (example)

Question 7

PREDATION

Answer 7

• +

behaviour of one animal feeding on another

• the one who was eaten

+ the one who killed and ate

it is really quick (15mins) mini relationship

goal is to kill or to survive

predator - killer // prey - food

e.g. fox and a bunny