7. Which statement about the use of independent variables in controlled experiments is correct?
a A different independent variable must be used each time an experiment
is repeated.
b. The independent variable must involve time,
c. Only one independent variable is used for each experiment.
d. The Independent variables state the problem being tested

How are cellular respiration and photosynthesis different? cellular respiration assists breathing; photosynthesis aids pigmentation. cellular respiration breaks down glucose; photosynthesis creates glucose. cellular respiration creates glucose; photosynthesis breaks down glucose. cellular respiration releases oxygen; photosynthesis releases carbon dioxide.

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.