A student records his pulse rate at rest and again after exercising for 30 minutes. He repeats this process for 15 days. There is a trend in his pulse rate and a possible explanation. His explanation is known as Group of answer choices

a theory

a hypothesis

raw data

an observation

i think that you are smart and you should fit for it out

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.