S7L4: Unit 1 Study Guide
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An ecosystem is best described as an interaction of _______ and _________ factors in a given area.
What type of relationship is a flower and a bee? ____________
A relationship in which one organism benefits and the other organism _____________ is known as commensalism.
Athlete’s foot is best described as a ___________ relationship.
True or false: Competition only occurs between organisms of the same species.
Create a food chain from the following desert organisms: (1) western diamond back rattle snake, (2) prickly pear
cactus, (3) red-tailed hawk, (4) wood rat
A food web and food chain differ in that a food chain consists of ____ path of energy flow through a system. A food
web consists of ______ different paths of energy through a system.
Plants move energy through ecosystems because they change sunlight into __________ for other animals.
Plants are _________, they make their own food using the sun. Animals are ________, they must consume other
organisms for energy.
The arrow in the following scenario means ____? plant  rabbit
Predators depend on _______ for their food. Therefore, if the prey disappears this can affect the ____________.
True or false: The factor that has the greatest influence on the type of ecosystem that will form in a given area is the
climate in the area of the ecosystem.
Give a reason for the few plants and animals that are able to survive in the desert.
True or false: The factors that affect population growth are resource availability, disease, climate and human activity.
Male zebras fighting to defend their territory and ensure breeding privileges is known as ______________.
Plants move energy through ecosystems because they change sunlight into __________ for other animals.
True or false: All food chains begin with a ____________ or plant.
Circle the best answer: If a population encounters an increase in resources (food, water, habitat) the population will
_______________.
Increase
Decrease Stay the same
Describe the following biomes: Tundra Temperate forest Savanna
S7L4: Unit 1 Study Guide
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An ecosystem is best described as an interaction of _______ and _________ factors in a given area.
What type of relationship is a flower and a bee? ____________
A relationship in which one organism benefits and the other organism _____________ is known as commensalism.
Athlete’s foot is best described as a ___________ relationship.
True or false: Competition only occurs between organisms of the same species.
Create a food chain from the following desert organisms: (1) western diamond back rattle snake, (2) prickly pear
cactus, (3) red-tailed hawk, (4) wood rat
A food web and food chain differ in that a food chain consists of ____ path of energy flow through a system. A food
web consists of ______ different paths of energy through a system.
Plants move energy through ecosystems because they change sunlight into __________ for other animals.
Plants are _________, they make their own food using the sun. Animals are ________, they must consume other
organisms for energy.
The arrow in the following scenario means ____? plant  rabbit
Predators depend on _______ for their food. Therefore, if the prey disappears this can affect the ____________.
True or false: The factor that has the greatest influence on the type of ecosystem that will form in a given area is the
climate in the area of the ecosystem.
Give a reason for the few plants and animals that are able to survive in the desert.
True or false: The factors that affect population growth are resource availability, disease, climate and human activity.
Male zebras fighting to defend their territory and ensure breeding privileges is known as ______________.
Plants move energy through ecosystems because they change sunlight into __________ for other animals.
True or false: All food chains begin with a ____________ or plant.
Circle the best answer: If a population encounters an increase in resources (food, water, habitat) the population will
_______________.
Increase
Decrease Stay the same
Describe the following biomes: Tundra Temperate forest Savanna
S7L4: Unit 1 Study Guide ANSWER KEY
1. An ecosystem is best described as an interaction of biotic and abiotic factors
in a given area.
2. What type of relationship is a flower and a bee? mutualism
3. A relationship in which one organism benefits and the other organism
neither benefits nor is harmed is known as commensalism.
4. Athlete’s foot is best described as a parasitism relationship.
5. True or false: Competition only occurs between organisms of the same
species. It can also occur between organisms of different species
6. Create a food chain from the following desert organisms: (1) western
diamond back rattle snake, (2) prickly pear cactus, (3) red-tailed hawk, (4)
wood rat (2), (4), (1), (3)
7. A food web and food chain differ in that a food chain consists of one path of
energy flow through a system. A food web consists of many different paths
of energy through a system.
8. Plants move energy through ecosystems because they change sunlight into
food for other animals.
9. Plants are autotrophs, they make their own food using the sun. Animals are
heterotrophs, they must consume other organisms for energy.
10.The arrow in the following scenario means energy in the plants that is being
transferred to the rabbit plant  rabbit
11.Predators depend on prey for their food. Therefore, if the prey disappears
this can affect the predators.
12. True or false: The factor that has the greatest influence on the type of
ecosystem that will form in a given area is the climate in the area of the
ecosystem.
13.Give a reason for the few plants and animals that are able to survive in the
desert. There is little water to support plant growth which affects other
organisms. Answers may vary, but this is key.
14.True or false: The factors that affect population growth are resource
availability, disease, climate and human activity.
15.Male zebras fighting to defend their territory and ensure breeding privileges
is known as competition
16.Plants move energy through ecosystems because they change sunlight into
food for other animals.
17.True or false: All food chains begin with a producer or plant.
18.Circle the best answer: If a population encounters an increase in resources
(food, water, habitat) the population will _______________.
Increase Decrease Stay the same
19.Describe the following biomes: Tundra
Temperate forest Savanna
Tundra – low temps, low precipitation, little wildlife
Temperate forest – high precipitation, humidity, variety of trees
Savanna - grasses, shrubs, and small trees that mostly grow during the short
rainy season