What tem describes the management of soil to prevent its destruction?
In which soil layer would you find loam that is rich in humus
When earthworms add their wastes to the soil then die and decay in the soil they are contributing to the formation of
All the different populations that live together in an area make up a(n)
The study of how things interact with each other and with their environment is called
Gray wolves in a forest are an example of a
Soil that is rich in humus has high
The practice of plowing fields along the curves of a slope is called
The living parts of an ecosystem are called this
The nonliving parts of an ecosystem are called
Which biome receives less than 25 centimeters of rain per year?
ponds and rivers are two types of this
The largest population that an environment can support is called
to carry out photosynthesis, algae and plants use the biotic factors sunlight, carbon dioxide, and this
The ingredients of photosynthesis are
What do producers release as a result of photosynthesis?
Coral reef, wetlands, and estuaries are all sub categories of what biome?
What makes a leaf appear green?
Photosynthesis in plants produces this
Soil is a valuable resource because it
What would be a biotic factor in the prairie ecosystem?
In conservation plowing why are dead weeds and stalks of the previous year's crop left in the ground?
The smallest unit of ecological organization is a single
Which biome is extremely cold and dry?
These organisms break down and digest the remains of dead organisms
