Biology, 06.04.2021 02:30, alemvp7258
Two students are comparing scientific experiments to investigations. They came up with the following ideas. Sudent A: Testing plant growth in different types of soils Student B: Comparing the water level in a lake during different times of the year Which student gave an example of a scientific experiment? a) student a because it requires experimental and control groups b) student b because it requires a hypothesis c) student a because it is preferably done in naturaal settings d) student b because it is preferably done across a long period of time
Answers: 3
Biology, 22.06.2019 05:50, lexi1268
The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes
Answers: 2
Biology, 22.06.2019 12:30, Diaryyy3986
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
Answers: 1
Two students are comparing scientific experiments to investigations. They came up with the following...
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