Match the word to its meaning.
Ecological sampling of living organisms | Starter Quiz | Oak National Academy

Quiz
•
Science
•
7th Grade
•
Hard
Oak National Academy
FREE Resource
6 questions
Show all answers
1.
MATCH QUESTION
1 min • 1 pt
habitat
where an organism lives
biodiversity
the range of different species that live in a place
conservation
activities that protect biodiversity and the environment
extinction
the permanent loss of a species
Answer explanation
Habitats are where organisms live. Biodiversity is the range of species that live in a place. Conservation is where the environment is managed to ensure species can survive. Extinction is when a species completely dies out and is lost forever.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What word means the mass of living material in one or more organisms?
Answer explanation
Biomass is the mass of living material in one or more organisms.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a food chain there are a number of trophic levels. Which tropic level does a food chain diagram always start with?
producer
primary consumer
secondary consumer
tertiary consumer
apex predator
Answer explanation
A food chain needs an organism at the start which makes all of the food for the rest of the food chain. These organisms are producers.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Look at the pyramid of biomass. Which organism is a producer?
organism A
organism B
organism C
organism D
Answer explanation
The first trophic level of a food chain is always represented by the bottom bar in a pyramid of biomass or a pyramid of number. As all food chains start with a producer, the correct answer is organism A.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement about pyramids of biomass is true?
Pyramids of biomass only show the numbers of organisms present.
A bar higher up the pyramid can be longer than a bar lower down.
Pyramids of biomass are always a pyramid shape.
Answer explanation
Pyramids of number may not be a pyramid shape because there may just be one producer, e.g. a large tree - feeding many consumers. But pyramids of biomass use the mass of individuals in each population in the food chain to make a pyramid shape.
6.
MATCH QUESTION
1 min • 1 pt
An adaptation is a feature that organisms have to help them live in a particular place. Match each adaptation with how it helps the organism to survive.
thick fur
helps to insulate an organism in a cold environment
long roots
helps to protect against being eaten
wide feet
helps by preventing sinking into soft ground such as sand
sharp spines
helps a plant get water from deep underground
big leaves
helps to trap more light to make food
Answer explanation
Long roots will help plants to collect water. Thick fur helps animals keep warm. Wide feet prevent them sinking into the ground. Big leaves help plants to collect more light to make more food. Sharp spines help to protect plants against being eaten.
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