2. When all the ecosystems on Earth are
combined it is called...
A. a community
B. a biome.
C. a biosphere.
D. an Earthsphere
3. The people in this picture represent which
level of environmental organization.
A. Organisms
B. Community
C. Biosphere
D.
Population
4. Which is the simplest level of organization
within the environment?
A. cell
B.
organism
C.
population
D. community
5. What is it called when a group of the same
organisms living together in the same place at the same
time?
A. An organism
B. A population
C. A community
D. A biome
6. A (or more than one) biotic community plus
the abiotic features.
A. Population
B. Community
C. Ecosystem
D. Biome
7. The correct order of ecological organization
from the smallest to the largest is
A. organism, community, population, ecosystem,
biosphere, biome
B. biosphere, biome, ecosystem, community,
population, organism
C. organism, population, community, ecosystem, biome,
biosphere
D. population, organism, biosphere, community,
ecosystem, biome​