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WorksheetsUnit 8: Review (Biology)
Total questions: 44
Worksheet time: 31mins
Name
Class
Date
1.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
2.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
3.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
4.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
5.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
6.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
7.
The amount of energy that usually transfers from one trophic level (feeding level) to the next...
a)
10%
b)
20%
c)
80%
d)
50%
8.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
9.
Organisms that can capture energy from inorganic, nonliving sources.
a)
Producers
b)
Consumers
c)
Detritivores
d)
Carnivores
10.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
11.
Organisms that feed on both living producers and other consumers.
a)
Carnivores
b)
Omnivores
c)
Herbivores
d)
Detritivores
12.
A graphic illustration that shows each trophic level and the amount of useable energy contained within.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
All of these
13.
Identify the pyramid as one of the following:
a)
Pyramid of Energy
b)
Biomass Pyramid
c)
Pyramid of Numbers
14.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
15.
An area where an organism finds food, shelter and water in a specific arrangement
a)
niche
b)
biosphere
c)
biome
d)
habitat
16.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
17.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
18.
What does a food web represent?
a)
All of the feeding relationships in an ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
19.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
20.
In this food chain, what will happen if the frogs become extinct?
a)
The snakes will increase.
b)
The grasshoppers will decrease.
c)
The eagles will remain the same.
d)
The grasshoppers will increase.
21.
Herbivores are consumers that eat only _________.
a)
plants
b)
birds
c)
cats
d)
meat
22.
Omnivores are consumers that eat both plants and animals. Since they can eat a variety of organisms, omnivores can easily ____________.
a)
become extinct
b)
move to new locations to find food
c)
adapt to changing environments.
d)
starve when the food changes
23.
Fungi, like mushrooms, and bacteria are best known as ____________. They chemically break down dead or dying organisms.
a)
producers
b)
consumers
c)
decomposers
24.
What does every food chain start with?
a)
producers
b)
sun
c)
consumer
d)
decomposers
25.
This organism traps sunlight in
green parts of its body. It
also draws nutrients and
water from the ground.
Is it a...
green parts of its body. It
also draws nutrients and
water from the ground.
Is it a...
a)
Producer
b)
Consumer
c)
Decomposer
26.
Examples of producers are...
a)
hamsters, cats, and dogs
b)
phytoplankton, plants, trees, and shrubs
c)
pigs, algae, cows, and plants
d)
plants and dogs
27.
The lion lives on the savanna.
a)
habitat
b)
niche
28.
Some producers don't rely on light for energy. For example, autotrophic bacteria near hydrothermal vents use sulfur molecules to produce their own ________. Producing energy-rich nutrient molecules from chemicals in a process known as ________.
a)
consumers, photosynthesis
b)
photosynthesis, chemosynthesis
c)
food, chemosynthesis
29.
What is a food chain?
a)
A chain that shows how heat passes from organism to organism.
b)
A way of showing how matter and energy pass from one organism to another.
c)
A representation of all the predator-prey relationships in a community.
30.
Which organism in the food chain shown is capable of producing its own chemical energy through the process of photosynthesis?
a)
Tuna
b)
Krill
c)
Shark
d)
Phytoplankton
31.
Approximately what percentage of the chemical energy found in the population of phytoplankton is passed on the the krill population?
a)
1%
b)
10%
c)
25%
d)
100%
32.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
33.
Only a small portion of the energy available in the plant population is passed on to the primary consumers. What happens to most of the energy that is consumed by the primary consumers?
a)
It is eventually returned to the plant population.
b)
It is used by the organism and expelled via heat and waste.
c)
It is used to convert carbon dioxide gas into sugars.
d)
It is converted back into its original form of solar energy.
34.
Identify the pyramid as one of the following:
a)
Pyramid of Energy
b)
Biomass Pyramid
c)
Pyramid of Numbers
35.
A food chain shows the transfer of ___ from one organism to another.
a)
matter
b)
consumers
c)
energy
d)
habitat
36.
Bacteria
a)
Producer
b)
Consumer
c)
Decomposer
37.
Which organism gets the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
38.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms.
d)
They represent how water is transferred within a habitat.
39.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
40.
Identify the pyramid as one of the following:
a)
Pyramid of Energy
b)
Biomass Pyramid
c)
Pyramid of Numbers
41.
Carnivores are consumers that eat only other animals. Some examples of carnivores are...
a)
tigers and sharks
b)
birds and tigers
c)
eagles and goats
d)
vultures and cows
42.
Which of the following is an example of a feedback mechanism that helps maintain homeostasis, or the balance, between populations in an ecosystem?
a)
predation
b)
commensalism
c)
mutualism
d)
decomposition
43.
Ecosystems with high ______ have better homeostasis. This allows them to cope better with environmental changes and disturbances because there are more species with different functions and roles.
a)
biodiversity
b)
competition
c)
predation
d)
energy levels
44.
Which of the following would disrupt the balance or homeostasis in an ecosystem?
a)
photsynthesis
b)
pollination
c)
pollution
d)
replanting of trees
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