In considering a pyramid of biomass, explain why a large producer biomass is needed to support a population of
carnivores. What will be an ideal response?
Each trophic level on a biomass pyramid experiences a reduction in biomass weight or
volume. For example, assuming an average biomass reduction of about 90% for each trophic
level, 10,000 kg of grass should support 1000 kg of grasshoppers, which in turn support 100
kg of frogs. Although the carnivores (frogs) do not eat producers, a large producer biomass is
required to support carnivores in a food web.
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Organisms that have their optimum growth pH between 8.5 and 11.5 are called ________.
Fill in the blank(s) with the appropriate word(s).
Which tissue has very little extracellular matrix, acts as an insulator, and is used to store chemical energy?
a. loose connective tissue b. blood c. cartilage d. fibrous connective tissue e. adipose tissue
A zombie apocalypse wipes out almost the entire human species before the zombie threat is eliminated. Only a group of 100 people who were at a family reunion on an uninhabited island survived. They returned to the mainland completely unaware of what had happened to everyone. Answer the following question(s) regarding the few survivors who now begin to rebuild the human population.Certain traits will have been lost from the gene pool forever. This loss of diversity in a reduced population is called ________.
A. bottleneck effect B. gene flow C. founder effect D. genetic drift
Which mode of transit has the greatest energy consumption?
A. Sedan B. SUV C. Bus during peak hours D. Bus during off-peak hours E. Pickup truck