2 students are experimenting to see if the amount of water affects who quickly it heats to 100*C. They decided to heat one beaker of 500 mL of water to 100*. They heat the second beaker of 250 mL of water to 100*C. They time how long it takes each to reach the desired temperature. They record their results. 1. What is the independent variable in the experiment above?

A. 500 mL of water
B. the amount of water
C. heating the water to different temperatures
D. how quickly the food dye spreads.

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

Each hereditary trait corresponds to

Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?