WorksheetsLAB QUIZ: Food Chains, Webs & Energy Pyramids (7th)
Total questions: 15
Worksheet time: 15mins
The study of the interrelationships of plants and animals and their interaction with the physical environment is known as
evolution
ecology
anatomy
taxonomy
What is the source of all energy shown in the food web?
green plants
mice
the sun
the soil
The bottom level of the energy pyramid contains the most amount of energy in the ecosystem. This level is full of organisms classified as
herbivores
primary consumers
secondary consumers
producers
What happens to the total amount of energy available in an ecosystem as you go up the energy pyramid?
Increases
Decreases
Stays the same
The transfer of energy between organisms in an ecosystem is called a(n) ______________.
food chain
consumer
ecosystem
decomposer
What process allows plants and other organisms to convert solar energy into chemical energy?
The water cycle
Photosynthesis
Hydrolysis
Cellular respiration
What happens to the energy that is not transferred in a food chain? (It isn't actually "lost.")
Some is used to produce waste in the consumer.
Some is not digestible, some is used, some becomes heat.
Some consumers are much smaller than their prey.
Most is used to digest the bones of the organism eaten.
What does a food web show?
The different pathways of energy flow within an environment.
How animals are related to each other in an environment.
The number of plants and animals in an ecosystem.
Pictures of the many plants and animals in an ecosystem.
Which choice best explains the relationship between the deer and the green plant?
The plant provides the deer with food and oxygen.
The plant provides the deer with food and carbon dioxide.
The deer provides the plant with food and oxygen.
The deer provides the plant with food and carbon dioxide.
In a food web, a snake eats a frog. The frog eats grasshoppers. Grasshoppers eat grass. Mice also eat grasshoppers. All of the following are consumers in this food web except for the
grass
snake
mice
grasshopper
The diagram shows a food chain. If the population of bobcats decreases, what will be the long-term effect on the rabbit population?
It will increase, only.
It will decrease, only.
It will increase then decrease.
It will decrease then increase.
The diagram shows relationships between organisms in an ecosystem. Besides sunlight, which factor should be added to make this a stable ecosystem?
predators
prey
decomposers
herbivores
A food web is shown in the diagram. Which types of organisms in the food web are shown by A, B, and C?
A - primary consumers; B - producers; C - secondary consumers
A - producers; B - secondary consumers; C - decomposers
A - producers; B - primary consumers; C - secondary consumers
A - primary consumers; B - secondary consumers; C - producers
The term population refers to the
role that all species play in their environment
interactions of plants and animals in an ecosystem
members of a single species in a given area
position of an organism in a food chain
A food web is represented in the diagram. If the fish population decreases, what is the most direct effect this will have on the aquatic ecosystem?
The leopard seals will all die from lack of food.
The krill population will only be consumed by seagulls.
The zooplankton population will increase in size.
The phytoplankton population will increase in size.
