Which of Earth's spheres are involved in the water cycle? O A. Atmosphere, hydrosphere, and biosphere only
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O B. Atmosphere and lithosphere only
O C. Atmosphere, lithosphere, and hydrosphere only
O D. Atmosphere, lithosphere, hydrosphere, and biosphere

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

Building glycogen from glucose molecules is an example of what

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one