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Ecosystems Starter: What do you know already? Flashcards | StudBud
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Ecosystems Starter: What do you know already?
Ecosystems Starter: What do you know already?
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Starter to begin IGCSE Ecosystems topic
Flashcards
17 cards
F
Practice quiz
P
Host live
L
Questions
17
Answers
1
Which of the following can all be characterized as abiotic factors?
plants, fish, whales
moon, stars, flowers
antelope, buffalo, bushes
soil, sunlight, water
2
Which way does energy flow in the food chain?
from the owl to the mouse to the grass
from the mouse to the grass to the Sun
from the mouse to the grass to the sun
from the sun to the grass to the mouse
3
Which of these is an
abiotic
(non-living) factor that could affect populations of living things?
disease
predator population
temperature
prey population
4
Which will
most likely
cause a decrease in predator populations?
a decrease in prey populations
an increase in prey populations
an increase in producers
a decrease in decomposers
5
Which organism is a producer?
mushroom
lizard
grass
frog
6
As more people live near a beach now, the sea turtle population has decreased. The most likely cause of this is...?
increase in predators
tropical storms
warmer temperatures
habitat loss
7
Which is a difference between abiotic and biotic factors?
Abiotic factors are plants and biotic factors are animals.
Abiotic factors are nonliving & biotic factors are living
Biotic factors are plants and abiotic factors are animals.
Abiotic factors are living & biotic factors are nonliving
8
Which is
most
responsible for recycling dead plants and animals in an ecosystem?
water
bacteria
insects
fish
9
The frog is the _____________ in this energy pyramid.
primary consumer
secondary consumer
tertiary consumer
herbivore
10
Why is the presence of insects in a rain forest ecosystem important?
Insects are a foodsource for many organisms in the ecosystem
Insects create energy needed by other animals.
Insects help keep plant growth under control.
Insects store water needed by other animals.
11
In the food web, which animal is an omnivore?
fox
owl
rat
frog
12
Which of these is a
biotic
(living) factor that could affect populations of living things?
oxygen concentration
disease
pH of soil
temperature
13
Which type of organism eats only plants?
carnivore
herbivore
producer
scavenger
14
How would the bird population in a forest area
most likely
be affected if a housing development in built in that area?
They would change the color of their feathers
They would produce more offspring
They would experience a decrease in available food
They would experience a decrease in competition
15
Which two ecosystems was the ecologist most likely comparing?
river and lake
ocean and lake
estuary and ocean
stream and pond
16
Which is an example of a decomposer?
a mushroom
a mouse
a flower
a hawk
17
Which population would most likely increase if the crayfish population decreased?
snail
hawk
mink
fish
