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WorksheetsEcology Exam Study Guide
Total questions: 89
Worksheet time: 46mins
A food web can be represented by many interconnected food chains.
True
False
There are rarely more than four trophic levels in an ecosystem.
True
False
The first trophic level is usually occupied by herbivores.
True
False- producers
Ecology is
The study of how living things interact with each other.
The study of how living things interact with their environment
The study of how living things interact with each other and with their environment.
The study of how living things and their niche.
In ecology, a community is defined as all the organisms in a(n)
population
species
ecosystem
succession
A habitat refers to the role of a sepcies in its ecosystem
True
False- niche
The first species to colonize an area of bare rock are called invasive species
True
False- pioneer species
Which organism would occupy the fourth trophic level?
phytoplankton
sea duck
tundra swan
bald eagle
Biotic factors include sunlight, soil, temperature, and water.
True
False- abiotic
Like water, energy is also recycled through an ecosystem.
True
False- matter
Which statement best explains the relationship between decomposers and producers?
Decomposers use the molecules that producers release back to the environment.
Producers use the molecules that decomposers extract from the environment.
Producers use the molecules that decomposers release back to the environment.
Decomposers use the molecules that producers extract from the environment.
This is a long quizizz... Sorry about that and hope it helps you out. How are you feeling?
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Just because of the confusion last time, who made this quizizz?
Sydnie
Aoife <--
Energy enters most ecosystems in the form of
soil and water
food
water
sunlight
It is possible for a plant to be a carnivore.
True
False
Approximately how much energy is passed between trophic levels?
1%
10%
25%
50%
Examples of abiotic factors include
trees, soil, and sunlight.
sunlight, soil, and water.
the living aspects of the environment.
all the choices apply.
Biodiversity refers to the number of different species in an ecosystem or the biosphere.
True
False
Which of the following mainly determine a habitat's features?
temperature and rainfall
animals in the habitat
plants and animals
soil and water
Which statement best explains the relationship between a food chain and a food web?
A food web includes many intersecting food chains.
A food chain includes many intersecting food webs.
A food chain leads into a food web.
A food web and food chain begin and end with the same organisms.
Which group of organisms would have the greatest biomass?
All of the producers in an ecosystem.
The largest organisms in an ecosystem, such as elephants.
The trillions of insects in an ecosystem.
All of the choices apply.
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Abiotic factors - nonliving aspects of the environment.
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Producers - organisms that produce food for themselves and other organisms.
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Decomposers - break down the remains of dead organisms
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Trophic levels- represent the feeding posistions in a food chain or web.
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Niche - role of a species in its ecosystem
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competitive exclusion principle - two different species cannot occupy the same niche for very long.
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Carnivore - lions, polar bears, hawks, spiders
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Ecology - the study of how living things interact with each other and with their environment.
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These organisms cannot make their own food; they must eat something for energy.
decomposer
consumer
producer
Choose the abiotic factor.
sunflower
dog
cat
table
LIVING things in an ecosystem
biotic
abiotic
ecosystem
Which of these living things is a producer?
horse
cow
fly
grass
NON-living things found in an ecosystem
biotic
abiotic
habitat
What are the living and nonliving things in an environment or area?
predator
producer
ecosystem
abiotic factor
What is scarcity and how could it affect an ecosystem?
Too many animals or plants in an area can cause the ecosystem to fail.
Too many animals or plants in an area can cause the animals to be too fat.
Too few animals or plants in an area can cause other animals to go hungry or die.
Too few animals or plants in an area can cause pollution
Interacting food chains found in an ecosystem
food web
food chain
predator
A decomposer is also a producer.
True
False
An animal that hunts and eats other animals for energy.
prey
predator
decomposer
Breaks down and feeds on the remains of other organisms
decomposer
consumer
producer
Explain the flow of energy in this food chain. (Who passes energy to who)
The hawk gives energy to the snake. The snake gives energy to the mouse. The mouse gives energy to the grasshopper who gives energy to the grass.
The mouse gives energy to the hawk. The snake gives energy to the grasshopper. The grass gives energy to the snake.
The grass gives energy to the grasshopper. The grasshopper gives energy to the mouse. The mouse gives energy to the snake who gives energy to the hawk.
Choose the decomposer
grass
elephant
bacteria
bird
Choose the consumer
mushroom
horse
tree
grass
Which of the following are factors that could cause extinction
Destruction of animals' habitat
Pollution
Climate change
increased human population (more people)
All of the above could cause extinction
An organism that can make its own food.
decomposer
producer
consumer
Mice and grasshoppers are examples of prey
True
False
Small consumers that are hunted and eaten by larger consumers
producer
prey
predator
Choose the producer
rock
tree
cow
bird
Where does the food chain START
with consumers that eat grass
with the sun giving energy to producers
with the sun giving energy to consumers
with consumers eating other consumers
Which animal is the apex predator?
hawk
lizard
snake
grass
Eat primary consumers (can be carnivores and omnivores)
tertiary consumers
secondary consumers
quaternary consumers
top predators
Why is a shark a carnivore
because it eats seaweed
because it eats dead animals
because it eats sand
because it eats other animals
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
1%
10%
100%
1000%
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
80%
90%
10%
20%
An organism that obtains energy from eating meats
omnivores
carnivores
herbivores
animals
Which animal is not the apex predator, but a predator to a mouse?
hawk
rabbit
snake
grass
The arrows in a food chain or web represents what?
They point to the organism that is being eaten
It shows how sunlight flows within an ecosystem
They show what direction the energy is flowing between organisms.
They represent how water is transferred within a habitat.
Biomass refers to
Chemical Energy
Light Energy
Rank in the feeding heirarchy
Amount of living tissue at the tropic level.
The process of plants using energy from the sun to create the first trophic level is called?
Photosynthesis
Chemosynthesis
Cellular Respiratation
Primary Producers
An organism that obtains energy by consuming plants and animals.
omnivores
carnivores
herbivores
humans
Trophic levels are represented by
squares
circles
pyramids
lines
Organisms that create their own energy from sunlight or chemicals.
herbivore
omnivore
autotroph
heterotroph
An organism that uses an outside source of energy like the sun to create energy-rich food molecules.
consumer
producer
decomposer
parasite
An organism that gets energy from breaking down dead organisms, non-living material or waste in a(n)
producer
consumer
decomposer
autotroph
All life needs energy.
True
False
Many scientists consider photosynthesis to be the most important life process on Earth.
True
Flase
The correct chemical formula for photosynthesis (in the presence of sunlight) is
6CO2 + 6O2 -> C6H12O6 + 6H20
6CO2 + 6H20 -> C6H12O6 +602
A food chain shows how energy and matter flow from consumers to producers.
True
False
Like matter, energy is also recycled by living organisms.
True
False
Glucose is a carbohydrate that stores chemical energy in a concentrated and stable form.
True
False
Only autotrophs can perform photosynthesis
True
False
Becayse you are able to cook your own food in the microwave oven, you are a producer.
True
False
Photosynthesis can be described as the process that
uses carbon dioxide and water, in the presence of sunlight, to produce food (glucose) and oxygen.
uses glucose and oxygen to produce energy for the cell (ATP), releasing carbon dioxide and water.
ATP is the “energy currency” of the cell, so it makes sense that a molecule of ATP contains much more chemical energy than a molecule of glucose.
True
False
Photosynthetic animals are autotrophs
True
False
Whereas photosynthesis occurs in only some organisms, cellular respiration occurs in the cells of all living things.
True
False
Which of the following statements is true?
The products of photosynthesis are the reactants of cellular respiration.
The products of cellular respiration are the reactants of photosynthesis.
Both statements are true.
Neither statement is true.
Only four types of organisms — plants, algae, fungi and some bacteria — can make food through photosynthesis.
True
False
Which of the following statements is true about glucose and ATP? (1) Glucose is made during photosynthesis. (2) The energy in sunlight is temporarily stored in glucose before it is transferred to ATP. (3) ATP is the energy-carrying molecule that cells use for energy. (4) The processes that make ATP and glucose also recycle oxygen in Earth's atmosphere.
Statement 1 only
Statements 2 and 3 only
Statements 1, 2, and 3 only
All 4 statements are correct
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ATP- the energy-carrying molecule that cells use for energy.
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autotroph- organisms that make their own food.
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cellular respiration- the process in which glucose is broken down and ATP is made.
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consumer- organisms that must eat.
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producer- also known as autotrophs
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energy- the ability to do work.
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food- organism molecules that store energy in their chemical bonds.
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food chain- shows how energy and matter flow from producers to consumers.
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glucose- stores chemical energy in a concentrated, stable form.
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photosynthesis- prcoess that stores energy from sunlight in the chemical bonds of glucose.
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