Exam If there are more secondary consumers
than primary consumers present in an
ecosystem, what can be assumed about
that ecosystem?
A. There is an imbalance in the ecosystem.
B. Everything is normal within the ecosystem.
C. The pyramids of numbers, energy and biomass are in
balance.

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs