Relationships

Question 1

Intraspecific

Answer 1

completion within a species

Question 2

Interspecific

Answer 2

competition among different species

Question 3

The competitive exclusion theory

Answer 3

Two different species attempt to occupy the same niche and the better competitor survives and reproduces

Question 4

Abiotic Factors

Answer 4

non-living factors contributing to the distribution of species including; sunlight, oxygen concentration, climate, rainfall ph. levels, carbon dioxide levels, soil type

Question 5

Biotic Factors

Answer 5

is any living component that affects another organism

Question 6

Competition

Answer 6

Individuals competing with each other for the same resource such as food, water, minerals, territory, nesting sites and mates, if it is intraspecific competition

Question 7

Predator/prey

Answer 7

The predator hunts, kills and eats the prey. Only the predator benefits

Question 8

Symbiosis

Answer 8

interaction between two different organisms living in close physical association

Question 9

Mutualism

Answer 9

an association between two organisms where both partners benefit from the relationship (e.g. Lichen: algae + fungi, tick on zebra)

Question 10

Collaboration/ co-operation

Answer 10

This in an association between two organisms where both benefit from a loose relationship (e.g. penguins huddling together for warmth)

Question 11

Commensalism

Answer 11

This is an association between two organisms where the commensal gains whilst the host neither gains nor lost (e.g. plants perching on trees to gain light for photosynthesis, tree does not benefit or lose)

Question 12

Amensalism

Answer 12

This is an association between two organisms in which one impedes or restricts the success of the other without being affected itself (grazing mammas trample plant, the plants die but the mammals are unaffected)

Question 13

Parasitism

Answer 13

this is an association between two organisms in which one, the parasite, lives temporarily on (ectoparasite) or in (endoparasite) the other, the host, deriving benefit from it and causing harm to it

Question 14

Antibiosis

Answer 14

One species benefits by producing a compound which inhabits the growth of another organism (e.g. alleopathy: a plant releases toxic compounds into the soil which prevent nearby plants growing. The allelopathic plant benefits by reduced competition.