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Interactions and Ecosystems
Interactions and Ecosystems
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1
What do plants release into the environment?
none of the above
oxygen
carbon dioxide
heat
2
In order to control aphids on your plants, and take care of the environment you should ...
spray the plants with water often to drown the aphids.
use a chemical pesticide.
There is nothing you can do.
use a biological control such as ladybugs.
3
What is the term for the development of an ecosystem in an area that was initially bare?
Secondary succession
primary succession
Bioaccumulation
symbiosis
4
What do plants use to make food?
water
sunlight
carbon dioxide
oxygen
5
What is Ecology?
All of the above.
Study of relationships among organisms of different species
Study of relationships among organisms of same species.
Study of relationships between organisms and habitats.
6
What are harmful substances released into the environment?
Decomposers
Pollutants
Indicators
Fossil fuels
7
Which organisms in a food web would be affected if unknown bacteria are killing plants?
Only the plants.
Only organisms feeding on the plants.
All the organisms composing the food web.
Everything on earth.
8
Which example shows how human interference enabled the disappearance of the swift fox?
Humans introduced a new food source.
Humans used their habitat for human development.
Humans removed food that the fox relied on.
Humans created laws to limit development.
9
Which of the following statements best describes an ecosystem?
Non-living components can affect the living organisms.
Humans can affect an ecosystem positively or negatively.
Living organisms can affect non-living components.
All of the above.
10
What are the 4 basic (scientific) needs of living things?
Food, water, companionship, air for gas exchange.
Food, water, sunlight, air for gas exchange.
Food, water, suitable habitat, air for gas exchange.
Food, water, physical activity, air for gas exchange.
11
Why is it rare to see a dead animal in a natural environment?
none of the above
We do not know where to look.
Scavengers and decomposers work to break down remains.
Most animals bury their dead.
12
Humans generate electricity by controlling water with dams. Which statement is true?
It is an example of ecosystem monitoring.
It is an example of how humans control natural resources.
It is an example of how humans use non-renewable resources.
It is an example of an ecological niche.
13
Which of the following are examples of abiotic parts of an environment?
soil and trees
water and soil
air and animals
air and plants
14
Which two parts of the water cycle return to the atmosphere?
Precipitation and run off
Condensation and ground water
Evaporation and transpiration
Transpiration and condensation
15
Environmental monitoring ...
Both 2 and 3 are correct
looks at changes over time.
only has to happen once.
involves making data comparisons.
16
At each point along the food chain, organisms use ________ energy and pass on _________
more - less
some, more
lots, lots
less - more
17
Which of the following would a scientist use to understand changes happening in ecosystems?
Long-term monitoring
species introduction
environmental impact assessment
ecosystem comparison
18
What is an adaptation?
None of the above
Something that an organism can change at will.
The smallest part of an organism.
An inherited characteristic that helps an organism survive.
19
What does commensalism mean?
One organism benefits, the other is not affected.
Both benefit
Neither benefits
One benefits the other is harmed.
20
Which is false?
pesticides are harmful to many organisms in an ecosystem
pesticides can have long-term negative effects
There are risks involved when introducing biological control
There are no risks in introducing biological controls.
21
How did DDT affect the Peregrine Falcon?
It caused the falcon to develop respiratory disorders
It destroyed the falcon's nesting material.
It poisoned the falcon's food source.
It caused the eggshells to become thin and fragile.
22
What is the first stage of succession?
Bushes and trees take root in thicker, richer soil.
Mosses and ferns grow in thin, poor soil that is produced.
Lichens produce acids that help break down rock.
Grasses and flowering weeds grow as soil starts to thicken.
23
Which animal would be the best indicator species in an aquatic ecosystem?
aquatic worms
burrowing owl
Grizzly bear
northern leopard frog
24
In order to reduce your ecological footprint you could ...
take shorter showers.
use car pools.
buy locally grown produce.
all of the above.
25
A food pyramid- grass, grasshoppers, robins and cats. which level will have the fewest numbers?
grass
robins
cats
grasshoppers
26
A Niche is determined by...
The amount of sunlight in an area.
How much land is has.
The amount of water available.
Where an organism lives, what it eats and how it interacts.
27
Many of the plants grown in Hawaii could not survive here. Which basic need is lacking?
Water
Air for gas exchange
Sunlight
Appropriate habitat
28
What do we call it when only a small number of a species remains alive?
evolved
extinct
dominant
endangered
29
Which word describes a relationship between two organisms where both benefit together?
parasitism
symbiosis
commensalism
mutualism
30
What is a Niche?
Part of a swamp.
Something to cut a tree down with.
The role as organism plays in its environment.
An area to store food.
31
Cutting down and burning forests increases the level of carbon dioxide because ....
burning debris puts more carbon into the atmosphere.
machines used will also use fossil fuels.
all of the above are true.
cutting down trees reduces the amount of photosynthesis.
32
What are the 3 Rs?
none of the above
Reduce, reuse, recycle
Reduce, replicate, recycle
Reduce, reuse, restructure
