Which of the following would be a reasonable organism to find in the PRODUCERS level (circle)?
a
mushrooms
b
tigers
c
grasses
d
bunnies
Question 2
Respiration has the greatest effect on which cycle?
a
sulfur cycle
b
carbon cycle
c
phosphorus cycle
d
nitrogen cycle
Question 3
Chemosynthetic bacteria, producers in the ecosystem at hydrothermal vents at the bottom of the ocean, produce carbohydrates using sunlight and water.
What is a hydrothermal vent?
True
False
Question 4
How are the movements of energy and chemicals (matter) through living things in ecosystems different?
a
Energy forms chemical compounds, and chemicals are lost as heat.
b
Chemicals flow in one direction, and energy cycles.
c
Energy flows in one direction and chemicals cycle.
d
Energy is limited in the biosphere, and chemicals are always available.
Question 5
Based on the pyramid, which organism(s) provide the MOST available energy?
a
birds and mammals
b
predator fish
c
insects and zooplankton
d
phytoplankton and bacteria
c
grasses
b
carbon cycle
False
c
Energy flows in one direction and chemicals cycle.
d
phytoplankton and bacteria