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WorksheetsAPES Topics 1.8-1.11
Total questions: 26
Worksheet time: 26mins
Photosynthesis is one process of ...
Secondary Productivity
kcal
Primary Productivity
Chemosynthesis
Net primary productivity is ...
the total rate of productivity minus the energy used up by respiration
the total rate of productivity plus the energy used by respiration
The total rate of productivity
measured in kcal/m^2/year
An oak forest takes in 167,000 kcal/m^2/year. 73,000 kcal of energy is lost to respiration, while the rest is stored.
What is the GROSS primary productivity?
73,000 kcal/m^2/year
240,000 kcal/m^2/year
167,000 kcal/m^2/year
94,000 kcal/m^2/year
A lizard eats a cricket which eats grass.
What trophic level is the lizard?
Primary Producer
Primary Consumer
Secondary Consumer
Tertiary Consumer
What trophic level is positioned at the bottom of the pyramid?
decomposers
primary consumers
primary producer
Sunlight
What percent (%) of energy is transferred from one trophic level to the next?
5%
10%
15%
20%
Where does the loss of energy go after traveling between trophic levels?
locomotion
back home
Sunlight
Heat
Algae generate 84,000 kcals of tissue. Which represents the amount of energy available for primary consumers in the food chain?
84,000 kcals
8,400 kcals
840 kcals
84 kcals
An eagle that is a tertiary consumer can access 30 kcal/m^2/year in a forest ecosystem. How much energy is converted by the primary producers in this ecosystem?
30,000 kcal/m^2/year
30 kcal/m^2/year
300,000 kcal/m^2/year
3 kcal/m^2/year
Which of the following vocabulary words can be used to describe the grass in this food chain?
heterotroph, primary consumer
autotroph, producer
decomposer, secondary consumer
primary consumer, autotroph
What does the arrow actually represent in a food web or food chain?
Who is being eaten
Who is eating
The flow of energy
the direction of food
What does a pyramid of numbers compare?
the number of individual organisms at each trophic level
the number of individuals in each population
the number of predators and prey in an ecosystem
the number of different populations at each trophic level
All energy on Earth comes from
food.
the sun.
chemicals.
non-living things.
Consumers breakdown the macromolecules of the organisms they have eaten to release ATP in a process called
photosynthesis.
chemosynthesis.
cellular respiration.
ATP liberation.
The levels of nourishment in a food chain are called
pyramids of numbers.
trophic levels.
food phases.
biomagnitudes.
Because energy flows from organism to organism and is used for metabolism or is converted to heat the next organism in the chain only receives 10% of the energy from the previous level. This is known as the
Heat Regulation.
Energy Loss Directive.
Heat Transfer Rule.
Rule of 10.
Biomass is
The mass of nonliving organisms in an area or ecosystem at a given time
All the waste produced by organisms in an area
The mass of living organisms in an area or ecosystem at a given time
The energy in an ecosystem
Which trophic level should have the most biomass?
A
B
C
D
E
How would the removal of earthworms from the food chain affect the other organisms?
The number of bass will increase.
The number of crayfish will decrease.
The crayfish will get their energy directly from the sun.
The number of bass and ospreys (bird) will increase.
The diagram shows part of an aquatic food web for a stable lake ecosystem in Connecticut. What is the source of energy for the algae?
waves
sunlight
bacteria
rotifers, water fleas and tadpoles
Which biome would have the highest net primary production?
savanna
boreal forest
coral reefs
desert
___________ and ___________ biomes have the highest net primary production.
Warm and wet
Cold and dry
Warn and dry
Cold and wet
Which is not a reason coral reefs have such high productivity?
They are entirely within the water.
They usually exist in very warn climates
Gets lots of sunlight to support photosynthesis
They are very deep in the oceans
What is the general trend in this graph? What factors appear to affect productivity, and how?
The general trend is that warm and wet biomes have higher primary production than cold, dry biomes.
The general trend is that cold and dry biomes have higher primary production than warm, wet biomes.
The general trend is that cold and wet biomes have higher primary production than warm, dry biomes.
The general trend is that warm and dry biomes have higher primary production than cold, wet biomes.
Which is an effect on the environment caused by the overuse of fertilizers?
An increase of carbon dioxide in the atmosphere leading to climate change.
Excess algae growth in waterways leading to low oxygen and fish kills.
An excess growth of crops leading to sediment runoff.
Decreased populations of insects which feed on crops.
