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

Me! eve and sammy are discussing the affects of farming on the environment. eve states that farming does not harm our environment. she believes that it is only beneficial for the ecosystem and species living in it. sammy states that farming can have major impacts on the environment. he believes farming can cause habitat loss. who is correct? question options: eve is correct because farming only leads to positive affects on ecosystems. sammy is correct because farming has major affects on the environment including soil erosion and flooding. eve is correct because farming does not lead to soil erosion and flooding. neither of them are correct.

How are rocks that cooled within magma chambers found on earth’s surface today? they are pushed up by magma under earth’s surface. they are revealed by erosion of earth’s surface over time. they are pushed to earth’s surface because of their larger size. they are revealed at earth’s surface due to their low density.

Environmental differences within ecosystems are generally caused by