Energy Transformation Answers

The energy in fossil fuels is derived from the energy stored in plant and animal matter.

Most energy enters ecosystems in the form of sunlight.

Which of the following best describes the solar radiation absorbed by and radiated from earth?a.Most incoming solar energy is absorbed by the atmosphere.b.Only a small fraction of energy radiating from Earth is from the atmosphere.c.The Earth’s surface is responsible for a small fraction of heat radiation to space.d.Earth’s surface absorbs little of the energy that strikes as solar radiation.

Primary productivity is not limited by _______.a.the availability of sunlightb.timec.the availability of nutrientsd.access to water

Which of the following is not true concerning the flow of energy through an ecosystem? a. Most solar energy is used in photosynthesis. b. Photosynthesis and cellular respiration are performed by plants. c. Not all solar energy is used for photosynthesis. d. Most of the energy from photosynthesis flows out as heat. Please select the best answer from the choices provided

Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds?a.glucoseb.oxygenc.carbon dioxided.all of the above

How is energy associated with food stored?a.potential energy in chemical formb.kinetic energy in chemical formc.potential energy in mechanical formd.kinetic energy in mechanical form

Which individual would be the safest from a lightening strike? a. a person standing 8 miles away b. a person on a bike 8 miles away c. a person in a tent 8 miles away d. a person in a house 8 miles away Please select the best answer from the choices provided

Which of the following best describes the fate of energy in ecosystems?a.It will ultimately be recycled back into the ecosystem.b.It flows from secondary consumers to primary consumers.c.It enters most ecosystems in the form of sunlight.d.It flows through and is used by ecosystems.

Heterotrophs convert solar energy into chemical energy.