Ultrasound may be used for medical purposes to see babies in the womb or to break up kidney stones. the uses depend on the frequencies used and how they are focused. how do ultrasounds compare to sounds a human can hear? a. ultrasound sounds are actually not sounds but are forms of radiation. b. ultrasounds are very high frequency sounds humans cannot hear. c. ultrasound waves are too large to travel into the inner ear. d. ultrasound waves travel as transverse waves instead of compression waves.

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

The term facultative anaerobe refers to an organism that

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit