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Science 7 Unit 1: Interactions in Ecosystems Review Flashcards | StudBud
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Science 7 Unit 1: Interactions in Ecosystems Review
Science 7 Unit 1: Interactions in Ecosystems Review
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A science quiz to review Science 7 Unit 1: Interactions in Ecosystems Review
Flashcards
70 cards
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Practice quiz
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Questions
70
Answers
1
What does an Indicator Species tell us?
The direction of energy transfer
The number of Producers present
The overall health of an ecosystem
The number of predators present
2
How would you label the snake in this food web?
A decomposer.
A tertiary consumer.
A secondary consumer.
A producer.
3
Four distinguishing features of invasive species
their seeds spread easily and effectively
they produce many many seeds.
they lack natural predators and diseases
they establish and spread quickly
4
are organisms that feed on dead or decaying matter.
Producer
Scavenger
Consumer
Decomposer
5
“_______” are
basic
to survival, whereas “_______” are things that just make survival more
comfortable
or enjoyable.
Wants, Wants
Needs, Needs
Needs, Wants
Wants, Need
6
How would you label the grasshopper in this food chain?
Tertiary consumer.
Primary consumer.
Decomposer.
Secondary consumer.
7
get their energy by eating producers and other consumers.
Consumer
Decomposer
Producer
Scavenger
8
Many countries dump garbage into the Pacific Ocean and much of it has accumulated together
UK Fatberg
The BP oil spill
Pacific Garbage Patch
The use of DDT
9
They grow on or in matter, absorbing the nutrients directly into their cells
Decomposer
Consumer
Scavenger
Producer
10
A food web is a...
Web with food on it.
Food shaped like a web.
Model of the relationship of producer & consumer's energy.
Web of a spider named Food
11
Monitoring that tracks the quality of air, soil and water.
Chemical monitoring
Environmental monitoring
Physical monitoring
Biological monitoring
12
the species is no longer found in a specific region, but is still found elsewhere.
Extirpation
Endangered
Extinction
13
Lifestyle changes
over time have increased the pressure on
the big city
our lives
different environments
ecosystems we live in
14
When looking at the health of the environment do we only look at it once?
True
False
15
the species is no longer found anywhere in the world
Endangered
Extirpation
Extinction
16
Define sustainability
The process of making an area more urban
The ability to be maintained at a certain rate or level
A substance thats harmful or poisonous effects
17
What are the four basic needs of animals?
air, bed, light, nutrients
air, water, food, shelter
water, air, pillow, blanket
water, treats, doghouse, shoes
18
Monitoring that track the changes in landscape over time.
Environmental monitoring
Biological monitoring
Chemical monitoring
Physical monitoring
19
an oil rig in the Gulf of Mexico exploded. Leaking out oil, killing animals and destroying the ecosystem.
UK Fatberg
Pacific Garbage Patch
The use of DDT
The BP oil spill
20
What does a numbers pyramid show?
Global warming
Numbers of individuals in an ecosystem at each feeding level
Shows mass of consumer tissue
Shows amount of calories transferred from one level to another
21
Monitoring that tracks changes in climate, temperature and weather patterns.
Environmental monitoring
Chemical monitoring
Biological monitoring
Physical monitoring
22
Massive amounts of fat and human waste congealing together in the sewer systems.
Pacific Garbage Patch
The use of DDT
UK Fatberg
The BP oil spill
23
process in which water that is taken in through a plant’s roots and evaporates from the plant’s leaves, stem and flowers
Transpiration
Evaporation
Precipitation
Condensation
24
What is biomass?
Dead plant and animal material that can be used as energy
The mass of living material in a area
The process in which living or ganisms produced energy
Dead plants and animals
25
How much land does the average Canadian use?
1 units
4.3 units
10 units
5.6 units
26
In food webs, arrows represent
Where the energy flows.
Where the treasure lies.
Where photosynthesis happens.
Where organisms travel to.
27
The shrimp cleans the eel's teeth. The eel stays healthy and the shrimp is fed. This is...
Commensalism
Photosynthesis
Mutualism
Parasitism
28
The remoras hang onto the shark and eat its leftovers. The shark doesn't care. This is...
Mutualism.
Photosynthesis.
Commensalism.
Parasitism.
29
Sulfur and Nitrogen at higher than normal levels in the air, which mix with water to produce acidic precipitation.
Acid Rain
Rain
Acid
Acid water
30
what is an adaptation
a characteristic that helps an organism survive
a characteristic that helps an organism survive and reproduce
a characteristic that helps an organism survive and reproduce
a characteristic that helps an organism reproduce
31
process in which water vapour turns to liquid.
Evaporation
Precipitation
Condensation
Transpiration
32
An organism that only eats producers is called
A carnivore
An omnivore
An autotroph
An herbivore
33
harness energy from the sun to make energy for themselves and others.
Consumer
Scavenger
Producer
Decomposer
34
In Commensalism:
Neither benefits
One benefits while harming the other
One benefits while not harming or benefiting the other
Both organisms benefit
35
There are
_________ useable units (hectares)
of land
available
on earth.
5 billion
8.9 billion
60 billion
1 billion
36
Secondary Succession
Happens when an ecosystem replaces a previous ecosystem
Happens when an ecosystem gets destroyed
Happens when an ecosystem develops for the first time
37
What does a Ecologist do
kill animals
help animals/vet
explain the interactions in a ecosystem
38
What are Natural Resources?
something that is found in nature and can be used by people.
I don't know
A tree that was made into paper
Something made by a person
39
What is a food chain?
A string of animals that eat other things.
An imaginary chain
Blank answer
A chain made of food
40
Organisms fill many roles in their lives, called
niches
habitat
roles
consumer
41
Monitoring that tracks the changes in organisms or populations of organisms.
Chemical monitoring
Biological monitoring
Environmental monitoring
Physical monitoring
42
Which statement best describes the relationship between humans and other animal species?
Humans impact other animal species in both positive and negative ways
Humans have little interaction and do not impact them at all
Humans always impact animal species in positive ways
Humans always have serious negative impacts on animal species
43
Primary Succession
Happens when an ecosystem develops where non existed before
Happens when an ecosystem replaces a previous ecosystem
Happens when an ecosystem grows in a developed area.
44
What is missing from this food web?
A secondary consumer.
A tertiary consumer.
A decomposer.
A producer.
45
What is symbiosis?
A chocolate bar
An organisms early stage of life
The relationship between two organisms that live close together
When an organism gives birth
46
what are the two types of adaptations
Learned: you were taught to do this
Inherited: you were born with it
Gained: you gained the ability to do it
Controlled: you can control it
47
Define PARASITISM
where one organism is harmed and nothing happens to the other organism
where one organism benefits and one organism is harmed
where one organism benefits and nothing happens to the other organism
where both organisms benefit
48
the species is at risk of extirpation or extinction due to traumas such as habitat loss, disease and over-hunting.
Endangered
Extirpation
Extinction
49
Which of the following is NOT a biotic factor?
Leaves
Seeds
A dead squirrel
Water
50
The largest component of any ecosystem are
Producers
Decomposers
Consumers
Parasites
51
These organisms are an example of what type of relationship?
Mutualism
Predator-Prey
Parasitism
Predator-Parasite
52
process when liquid water forms from condensation occurring inside clouds, and then falls as rain, sleet, snow and hail.
Precipitation
Evaporation
Condensation
Transpiration
53
Mutualism means...
Teenage Mutant Ninja Turtles!
When something goes wrong and there is a mutation
An interaction between two species in which both benefit
A type of symbiosis
54
Biomagnification is...
the study of microscopic biology
instant death
when toxin concentrations increases up the food chain
when toxin concentrations decrease moving up the food chain
55
What type of symbiosis is this an example of?
Parasitism.
Photosynthesis.
Mutualism.
Commensalism.
56
An organism that only eats consumers is called
An autotroph
A carnivore
An omnivore
A producer
57
All organisms and abiotic factors in one place are
A population.
An individual.
An ecosystem.
A community.
58
Abiotic factors are...
non-living
man-made
living
animals
59
Animals eat the plants and release the carbon dioxide when they exhale.
False
True
60
Biotic factors are...
animals
living
man-made
non-living
61
How can we control pest populations
Biological Control: Using natural enemies to eat pests
Water: spraying water on the pests to drive them away.
Pesticides: any substance used to kill, repel, or control certain pests.
UV Light: Using ultraviolet light to burn/boil the pests away
62
With bioaccumulation...
Toxic chemicals become more concentrated
Toxic chemicals mix together
Toxic chemicals become less concentrated
Toxic chemicals mutate and become harmful
63
Definition of ecology
Studies relation between human beings and it environment
Studies biotic and abiotic factors
Studies relation between living beings and it environment
Studies natural landscape
64
Which of the following is a way to get energy
Decomposer
Scavenger
Producer
Consumer
65
How would you label the snake in this food chain?
Secondary consumer.
Decomposer.
Primary consumer.
Tertiary consumer.
66
Plants take carbon dioxide from the air in order to make food.
False
True
67
a chemical pesticide was found to poison adults & thinning of the egg shells
Pacific Garbage Patch
The BP oil spill
UK Fatberg
The use of DDT
68
Ecosystem/environmental monitoring is checking in on the health of an ecosystem.
False
True
69
process in which a liquid changes into water vapour.
Transpiration
Condensation
Precipitation
Evaporation
70
Each person
would have about
____units to meet their needs.
10 units
0 units
1.5 units
4 units
