Each tier of the biomass pyramid depicts the
____ of all the organisms in an ecosystem.
a. size
b. number of species
c. dry weight
d. total weight
e. total utilization of materials
C
You might also like to view...
Compare control of breathing in a human before and during physical exercise
What will be an ideal response?
Archaeal cell walls ________.
A. lack murein and D-amino acids B. are disrupted by treatment with lysozyme or penicillin C. include orthomureine D. are similar to those of Gram-negative bacteria
Which group of fishes evolved first?
A) Ray-finned fishes B) Lobe-finned fishes C) Cartilaginous fishes D) Jawless fishes
If a lung is punctured in a car accident, that lobe fails to inflate even though there is no obstruction of the air passageway to that lobe. Why?
Select one: a. The trauma must have damaged the nerve path controlling ribs on that side of the lung. b. Negative feedback prevents the ribs and diaphragm on that side from causing pain. c. When the chest volume expands, air can now rush in through the puncture without filling the alveoli. d. Mucus or blood must be filling the lobe. e. Stimulation of stretch receptors in the alveolar walls initiate inhibitory nerve impulses.