ecosystem

Question 1

habitat

Answer 1

the place where an organism lives eg a rocky shore or a field

Question 2

population

Answer 2

all the organisms of one species in one habitat

Question 3

producer

Answer 3

an organism that produces organic molecules using sunlight energy eg: plants

Question 4

consumer

Answer 4

an organism that eats other organisms eg; animals and birds

Question 5

decomposer

Answer 5

an organism that breaks down dead or undigested organic material eg bacterial and fungi

Question 6

trophic level

Answer 6

a stage in a food chain occupied by a particular group of organisms eg : producers are first trophc level in a food chain.

Question 7

whats an ecosystem?

Answer 7

an ecosystem is all the organisms loving in a certain area and all the non living conditions found there. - its a dynamic system - this mean its changing all the time.

Question 8

whats an abiotic factor?

Answer 8

the nonliving features in an ecosystem. eg temperature, rainfall , shape of a land.

Question 9

whats a biotic factor?

Answer 9

the living features of an ecosystem. eg the presence of a predetor or food.

Question 10

how does the biotic and abiotic factors have an impacton the ecosystem?

Answer 10

rock pools- biotic factors - sea weed can be a food source for consumers.
- abiotic factors- rock pools are heavily influenced by the tides. at the high tide they are completely submerged by the ocean so experience similar abiotic factors.

playing field : biotic factor- producers include grass and other plants such as daisies . the large amount of these plants attract large amount of organismsm that use these as a food source.
abiotic factors - rainfall and sunlight affect the growth of producers in the ecosystem.

Question 11

what’s biomass?

Answer 11

its the mass of a living material eg:the mass of a palnt material.

Question 12

whats a food chain

Answer 12

simple lines of energy transfer

Question 13

food web

Answer 13

these show lots of food chains in an ecosystem and how they overlap.

Question 14

primary consumer

Answer 14

producers are eaten by primary consumers

Question 15

secondary consumer

Answer 15

primary consumers are eaten by secondary consumer

Question 16

tertiary consumer

Answer 16

secondary consumers are eaten by tertiary consumer

Question 17

how is energy transferred in an ecosystem

Answer 17

energy is transferred through the living organisms of an ecosystem when organisms eat other organisms.

Question 18

how do plants store energy and where do plants get their energy from ?

Answer 18

plants store energy as biomass and they receive their energy from he sunlight. during phtosyntheis plants convert sunlight energy into a form that can be used by other organisms - plants are called the producers .56