Which of the following should be disposed of in the biohazard trashcan when finished? (Choose all that apply)
> Glass slides
> Contaminated paper towels
> Used gloves that are not contaminated
> Used gloves that are contaminated
> Plastic petri dishes with bacterial cultures
> Serological pipettes
> Bacterial cultures in glass test tubes
> Uncontaminated paper towels
> Flasks
> Broken glass
> Contaminated paper towels
> Used gloves that are not contaminated
> Used gloves that are contaminated
> Plastic petri dishes with bacterial cultures
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Which is an example of potential energy rather than kinetic energy?
A. a pile of leaves that have been burned B. a candle giving off light C. a firefly using light flashes to attract a mate D. an apple made up of energy-rich macromolecules E. a skier at the bottom of the hill instead of the top of the hill
The first photosynthetic organisms to obtain hydrogen by splitting water were the cyanobacteria
__________ Indicate whether the statement is true or false.
If ATP used by this plant is labeled with radioactive phosphorus, which molecule or molecules of the Calvin cycle will be radioactively labeled first?
A) B only B) B and C only C) B, C, and D only D) B and E only E) B, C, D, and E
The fruit produced by angiosperms is an evolutionary adaptation that most often
A. nourishes the seeds within the fruit on ripening B. aids in seed dispersal C. attracts pollinators D. inhibits seed germination until favorable environmental conditions occur E. provides an energy source for the plant egg cell prior to fertilization