The bacterium E. coli swims in a straight line, called a ________, for a few seconds; then it stops, tumbles, then swims away in a new direction.
Fill in the blank(s) with the appropriate word(s).
run
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Which of the following is a product of the light-dependent reactions?
a. carbon dioxide b. glucose c. ATP d. water
Which of the following is NOT part of the
initial response to cold temperature? a. vasodilation of peripheral blood vessels b. shivering c. muscle contractions d. shunting of the blood to the core regions of the body e. increased metabolism
Which of the following is the probable basis for the
evolution of mitochondria and chloroplasts? a. Cells eat each other. b. Light is an energy source. c. ATP can carry energy. d. Oxygen is a by-product of photosynthesis. e. Energy can be transformed from one form to another.
It is a concern that avian flu could become a _____ with cases spread around multiple continents
Fill in the blank(s) with the appropriate word(s).