Suppose Pasteur's swan-necked flasks containing boiled broth became cloudy (evidence of bacterial growth) 24 hours after boiling. Which chose could best explain the turbidity or cloudiness in the broth without supporting spontaneous generation?
a. endospores in the broth survived boiling and grew after the broth cooled
b. contaminating organisms in the broth killed by being become alive again after the broth cooled
c. chemicals in the broth came together to form living organisms
d. the broth allowed light o pass through it with less interference after boiling
Answer: a. endospores in the broth survived boiling and grew after the broth cooled
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A dehydrated runner drinks a lot of water after a race. They rehydrate because
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The law of independent assortment states which of the following?
a. Two alleles will be inherited together during gamete formation. b. Two genes will be inherited together during gamete formation. c. Two genes will segregate during gamete formation. d. Two genes will segregate during mitosis.
Which of the following is (are) NOT trend(s) of
vertebrate evolution? a. conversion of the support for locomotion from the notochord to the vertebral column b. expansion of the nerve cord to form the brain and spinal cord c. changes in the respiratory system from gills to lungs with accompanying changes in the circulatory system d. the development of fewer, more efficient chambers in the heart e. modification of limbs for more efficient movement
Chlorine dioxide and ethylene oxide are gaseous sterilants.
Answer the following statement true (T) or false (F)