Approximately 10% of the energy absorbed by one
trophic level is transferred to the next successive
level. The same number of calories are available at
the primary producer level of each of these food
chains.
Food Chain 1:
phytoplankton → zooplankton → smelt → trout → humans
Food Chain 2: phytoplankton → smelt → humans
How much energy is available to humans in
Food Chain 2 as compared to the energy available
to humans in Food Chain 1 ?
(look at the difference in trophic levels)

A )100 times less energy

B) 10 times more energy

C) 100 times more energy

D) 10 times less energy

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.

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

What is the next step in muscle contraction after the actin changes shape? (apex)