what does bioaccumulate mean?

chemicals build up in the food chain causing harm

a chemical used to kill insects on crops

where would you find sludgeworm and bloodworm?

polluted water, water with low oxygen levels

the place where an animal lives

the correct equation for photosynthesis is ...

water + carbon dioxide = oxygen + glucose

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Y10 Ecosystems topic

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Y10 WJEC ecosystems

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Questions 20

Answers

1
in a food chain the arrows represent ....
what eats what
flow of waste
energy
level of importance
2
what is biomass?
the amount of living material
the amount of organisms
the amount of energy
the amount of mass
3
these always look like pyramids
true
false
4
lichens are sensitive to which toxic gas?
sulphur dioxide
farts
carbon dioxide
carbon monoxide
5
what does bioaccumulate mean?
when Biology teachers meet up for dinner
chemicals group together in ponds and lakes
chemicals build up in the food chain causing harm
things meet up at the skatepark
6
what is a pesticide?
a chemical used to scare away mice
a chemical used to kill weeds
a chemical used to increase plant growth
a chemical used to kill insects on crops
7
the three main groups of pollution are ...
nice, nasty and even nastier
air, water, land
noise, light and smell
carbon dioxide
8
An animal that feeds on other animals.
carnivore
prey
consumer
predator
9
which nutrient can cause overgrowth of algae in ponds and lakes?
sulphates
phosphates
carbonates
nitrates
10
identify the decomposers
fungi
bloodworms
bacteria
binmen or women : )
11
where would you find sludgeworm and bloodworm?
water with high oxygen levels
freshwater
polluted water
water with low oxygen levels
12
herbivores only eat ...
eat other
other animals
plants
meat
13
where does the energy in a food chain come from?
plants
god
Mr Dobson
sun
14
in a pyramid of numbers the plants always go at the ...
they are not included
bottom
top
middle
15
what is a habitat?
environmental factors
a collection of species living together
the place where an animal lives
a shop
16
In this food chain what is the producer?
sun
bird
leaf
worm
17
primary, secondary ... what comes next ?
tershary
tertiary
tershiary
level 3
18
the correct equation for photosynthesis is ...
water + light = carbon dioxide + glucose
water + carbon dioxide = oxygen + glucose
carbon dioxide = glucose
oxygen + glucose = water + carbon dioxide
19
an organism that breaks down dead animals is known as a ...
fertiliser
decay
decomposer
decomposition
20
where would you find mayfly larvae?
freshwater stream or river
polluted water
in the pub
partly polluted water

Y10 Ecosystems topic Flashcards | StudBud