Ecosystems And Their Living Communities

Question 0

Community

Answer 0

Each community is made up of all the populations of various organisms living in the same location at the same time

Question 1

Ecosystem

Answer 1

A biological community living in a discrete region, the physical surroundings and the interactions that maintain the community

Question 2

Population

Answer 2

All individuals of one particular species living in the same area at the same time

Question 3

Littoral zone

Answer 3

The narrow strip of Coast that lies between the lower water mark (LWM) of low and the high water mark (HWM) of hight tide

Question 4

Producers / autotrophs

Answer 4

Make chemical energy in the form of organic compounds for their own use and also, directly or indirectly, for the use by all other members of the living community of that ecosystem. E.g photosynthesis and chemo

Question 5

Consumers / heterotrophs

Answer 5

Members of a community that must obtain their energy by eating other organisms or parts of them

Question 6

Decomposes

Answer 6

Heterotrophs

Question 7

Herbivores

Answer 7

Eat plants

Question 8

Carnivores

Answer 8

Eat animals

Question 9

Omnivores

Answer 9

Eat both plants and animals

Question 10

Detrivores

Answer 10

Eat decomposing organic matter such a as rotting leaves e.g earth worms

Question 11

Predator-prey relationship

Answer 11

One species (the predator)kills and eats another living animal (prey)

Question 12

Intraspecific competition

Answer 12

Competition between members of the same species for resources

Question 13

Interspecific

Answer 13

Members of a population of one species also compete with members of populations of other species.

Question 14

Mutualism

Answer 14

Both organisms benefit

Question 15

Commensalism

Answer 15

One member gains gains benefit and the other member neither suffers harm nor gains benefit

Question 16

Primary succession

Answer 16

Different communities in turn become established on land that has not previously been colonised