Several experiments in the 1800s demonstrated that the tips of plants are responsible for detecting light, which causes the stem of the plant to elongate and bend towards the light.

Which of these phrases are accurate about the experimental design and its validity?

The experiment should be repeatable by the same researcher.
The experiment should be replicated by different researchers.
A control plant with no light or top light would likely show no bending.
All species of plants behave the same way.
The light levels should increase during the experiment as the plant grows.

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted