Which of the following best compares energy and nutrients?
A) Energy and nutrients flow one way through ecosystems.
B) Energy and nutrients both cycle within ecosystems.
C) Energy cycles within ecosystems, while nutrients flow only one way through ecosystems.
D) Energy flows one way through ecosystems, but nutrients cycle within ecosystems.
Question 2
Radon is an odorless radioactive gas that you cannot taste or see. Exposure to this naturally occurring gas can be dangerously high in any home in North America.
Homes must be specially tested for exposure levels for residents to understand their risks. If risks are high, venting systems can be installed to significantly lower indoor levels of exposure. The most likely health problem associated with long-term exposure to this radioactive gas is A) a stroke or heart attack.
B) lung cancer.
C) elevated blood pressure.
D) obesity leading to diabetes.
A sample flow sheet.
When the thermostat opens, the coolant can flow to the radiator.
Ancient drawing of energy channels and acupoints.
Resonance transfer of energy in a light-harvesting complex
Renewable Energy Sources Globally
In Falls, Energy Is Transmitted Along the Skeletal System