Compare and contrast the conceptual foundation and application of two different types of ecological
pyramids. What will be an ideal response?
Ecological pyramids graphically represent certain aspects of the trophic levels in a food chain.
A pyramid of numbers indicates the total number of organisms occupying each trophic level.
A pyramid of biomass indicates the total biomass of the organisms in each trophic level.
A pyramid of energy indicates the total energy content of the organisms in each trophic level.
Pyramids of numbers and biomass can sometimes be inverted, but the pyramid of energy is never
inverted because energy is always lost during the transition of one tropic level to another.
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Which type of plants will only use the Calvin-Benson cycle for photosynthesis? a. CAM b. C3 c. All of them use the Calvin-Benson cycle
d. None of them use the Calvin-Benson cycle. e. C4
The plant cell organelle most analogous to animal cell lysosomes is the
A) vacuole. B) glyoxysome. C) microsome. D) endosome. E) leaf peroxisome.
Which organism is not correctly matched to its energy source?
A) Chemoheterotroph — glucose B) Photoheterotroph — light C) Chemoautotroph — NH3 D) Photoautotroph —CO2 E) Chemoautotroph — Fe2+
How is immune memory beneficial to a host organism?
What will be an ideal response?