| Soil | Soil and Ecosystems | Ecosystems | Biomes | Plants |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
Soil that is rich in humus has high
Soil that is rich in humus has high
fertility
When earthworms add their wastes to the soil then die and decay in the soil they are contributing to the formation of
When earthworms add their wastes to the soil then die and decay in the soil they are contributing to the formation of
humus
These organisms break down and digest the remains of dead organisms
These organisms break down and digest the remains of dead organisms
decomposers
Soil is a valuable resource because it
Soil is a valuable resource because it
is important to all living things on land
What tem describes the management of soil to prevent its destruction?
What tem describes the management of soil to prevent its destruction?
soil conservation
The practice of plowing fields along the curves of a slope is called
The practice of plowing fields along the curves of a slope is called
contour plowing
In which soil layer would you find loam that is rich in humus
In which soil layer would you find loam that is rich in humus
A horizon
In conservation plowing why are dead weeds and stalks of the previous year's crop left in the ground?
In conservation plowing why are dead weeds and stalks of the previous year's crop left in the ground?
to retain moisture and hold the soil in place
ponds and rivers are two types of this
ponds and rivers are two types of this
freshwater ecosystems
The living parts of an ecosystem are called this
The living parts of an ecosystem are called this
biotic factors
What would be a biotic factor in the prairie ecosystem?
What would be a biotic factor in the prairie ecosystem?
grass
The smallest unit of ecological organization is a single
The smallest unit of ecological organization is a single
organism
Gray wolves in a forest are an example of a
Gray wolves in a forest are an example of a
population
The largest population that an environment can support is called
The largest population that an environment can support is called
carrying capacity
The nonliving parts of an ecosystem are called
The nonliving parts of an ecosystem are called
abiotic factors
The study of how things interact with each other and with their environment is called
The study of how things interact with each other and with their environment is called
ecology
All the different populations that live together in an area make up a(n)
All the different populations that live together in an area make up a(n)
community
Which biome receives less than 25 centimeters of rain per year?
Which biome receives less than 25 centimeters of rain per year?
desert
Coral reef, wetlands, and estuaries are all sub categories of what biome?
Coral reef, wetlands, and estuaries are all sub categories of what biome?
aquatic
Which biome is extremely cold and dry?
Which biome is extremely cold and dry?
desert
What do producers release as a result of photosynthesis?
What do producers release as a result of photosynthesis?
oxygen
What makes a leaf appear green?
What makes a leaf appear green?
chlorophyll
The ingredients of photosynthesis are
The ingredients of photosynthesis are
carbon dioxide and water
Photosynthesis in plants produces this
Photosynthesis in plants produces this
sugar and oxygen
to carry out photosynthesis, algae and plants use the biotic factors sunlight, carbon dioxide, and this
to carry out photosynthesis, algae and plants use the biotic factors sunlight, carbon dioxide, and this
water
List each biome and the subcategories for each one
List each biome and the subcategories for each one
Aquatic, Desert, Forest, Grasslands, Tundra
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