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B7: Quiz 1 – Answers
B7: Quiz 1 – Answers
1)
a) A habitat is an area where organisms live
b) The population of an organism is all of the members of a single species in a habitat
c) A community is two or more populations of organisms living in a habitat
d) An ecosystem is the interaction between the living organisms (biotic) and non-living (abiotic) parts of their environment
e)
i) Biotic is the living parts of an ecosystem (such as plants and animals)
ii) Abiotic is the non-living parts of an ecosystem (such as soil, light, moisture etc.)
2)
a) The arrows in food chains show the direction of energy transfer
b)
i) Producers are organisms that use sun light to produce food. They produce food (glucose) by photosynthesising (carbon dioxide + water –> glucose + oxygen)
ii) Phytoplankton
c) Consumers are organisms that gain energy from eating a producer or another consumer
d)
i) Carnivores (as they eat other animals)
ii) Chinstrap penguin
e)
i) Herbivores (as they eat producers/ plants)
ii) Krill
f) Seal
3)
a) Biomass measures the mass of all living material at each stage of the food chain. Or, biomass is the mass of living material in an organism/ species
b) Decreases
4)
a) Fox
b) Rabbit
a) A habitat is an area where organisms live
b) The population of an organism is all of the members of a single species in a habitat
c) A community is two or more populations of organisms living in a habitat
d) An ecosystem is the interaction between the living organisms (biotic) and non-living (abiotic) parts of their environment
e)
i) Biotic is the living parts of an ecosystem (such as plants and animals)
ii) Abiotic is the non-living parts of an ecosystem (such as soil, light, moisture etc.)
2)
a) The arrows in food chains show the direction of energy transfer
b)
i) Producers are organisms that use sun light to produce food. They produce food (glucose) by photosynthesising (carbon dioxide + water –> glucose + oxygen)
ii) Phytoplankton
c) Consumers are organisms that gain energy from eating a producer or another consumer
d)
i) Carnivores (as they eat other animals)
ii) Chinstrap penguin
e)
i) Herbivores (as they eat producers/ plants)
ii) Krill
f) Seal
3)
a) Biomass measures the mass of all living material at each stage of the food chain. Or, biomass is the mass of living material in an organism/ species
b) Decreases
4)
a) Fox
b) Rabbit
Questions
1)
a) Define a habitat.
b) Define the “population of an organism”.
c) Define a community.
d) Define an ecosystem.
e)
i) What does biotic mean?
ii) What does abiotic mean?
2) We have the food chain below.
1)
a) Define a habitat.
b) Define the “population of an organism”.
c) Define a community.
d) Define an ecosystem.
e)
i) What does biotic mean?
ii) What does abiotic mean?
2) We have the food chain below.
a) What do the arrows in a food chain show?
b)
i) What is a producer and by what process do they produce energy?
ii) Who is the producer in the food chain above?
c) Give a definition of a consumer.
d)
i) Are secondary consumers herbivores or carnivores?
ii) Who is the secondary consumer in the food chain above?
e)
i) Are primary consumers herbivores or carnivores?
ii) Who is the primary consumer in the food chain above?
f) Who is the tertiary consumer in the food chain above?
3)
a) Define biomass?
b) We have the food chain below.
b)
i) What is a producer and by what process do they produce energy?
ii) Who is the producer in the food chain above?
c) Give a definition of a consumer.
d)
i) Are secondary consumers herbivores or carnivores?
ii) Who is the secondary consumer in the food chain above?
e)
i) Are primary consumers herbivores or carnivores?
ii) Who is the primary consumer in the food chain above?
f) Who is the tertiary consumer in the food chain above?
3)
a) Define biomass?
b) We have the food chain below.
Does the biomass increase or decrease as we move through the food chain (from left to right)? You do not need to explain your answer.
4) A fox eats a rabbit.
a) Who is the predator?
b) Who is the prey?
4) A fox eats a rabbit.
a) Who is the predator?
b) Who is the prey?