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WorksheetsApes Unit Ecosystems
Total questions: 27
Worksheet time: 27mins
Which biome contains the abyssal zone?
open ocean
freshwater wetlands
coral reefs
streams and rivers
This biome has grass, but few trees due to fires, drought, and grazing
temperate grassland
coniferous forest
desert
savanna
What is the main reservoir for the carbon cycle?
Atmosphere
Ocean sediment
Coal
Vegetation
What is the main function of photosynthesis for a plant?
To make glucose
To make carbon dioxide
To make oxygen
To make proteins
What service do decomposers perform?
Store carbon dioxide
Recycle nutrients and matter
Produce phosphorus for plants
Filter water
Which element makes up the majority of the atmosphere?
Carbon
Oxygen
Phosphorus
Nitrogen
Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert....
nitrates intro nitrogen gas
ammonia into proteins
nitrogen gas into ammonium ions
proteins into nitrates
Which pair of biogeochemical cycles have nutrients that are considered limiting factors in plants?
Carbon and Nitrogen cycles
Carbon and Sulfur cycles
Phosphorus and Nitrogen cycles
Sulfur and Nitrogen cycles
Sulfur and Water cycles
A forest has a GPP of 3.8 kcal/m^2/year and the rate of cellular respiration is 2.4 kcal/m^2/year. What is the NPP?
6.2 kcal/m^2/year
1.4 kcal/m^2/year
1.0 kcal/m^2/year
9.12 kcal/m^2/year
1.58 kcal/m^2/year
Choose the correct sequence for energy flow within an ecosystem
Herbivores --> producers --> carnivores --> scavengers
Producers --> herbivores--> carnivores --> decomposers
Producers --> carnivores --> herbivores--> carnivores
Scavengers--> carnivores --> herbivores--> producers
One characteristic feature of the tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a permanently frozen subsoil. This characteristic is known as
Hoarfrost
Glaciation
Permafrost
Crystallization
The kangaroo rat is able to get all of the water it needs through its food and therefore, never needs to drink liquid. This animal has adapted to survive in which biome?
Forest
Tundra
Desert
Grassland
The rain forest soil is
poor and rocky
frozen soil
thick and nutrient rich
thin and nutrient poor
Which biome, because of its climate, has the largest number of species of plants and animals?
Tundra
Tropical Rainforest
Desert
Coniferous forest
__________ primary productivity = the organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).
Gross
Total
Net
Secondary
Ecological efficiency from one trophic level to the next is generally:
1%
10%
75%
90%
Which biome does this climate diagram (or climograph) represent?
Temperate grasslands
Open ocean
Tropical Rainforest
Desert
Which aquatic biome has the lowest NPP?
Swamps and marshes
Intertidal Zone
Lakes and Ponds
Open Ocean
Phytoplankton are most abundant in the upper few hundred feet of most bodies of water because
sunlight doesn't penetrate much further than that
they must be easily accessible to other organisms
they feed on zooplankton
they can hide from predators
