PLEASE HELP Problem Question:
Does the amount of sunlight a plant receives impact its height?

Independent variable:

Dependent variable:

2 constant variables:

Control group design:

Experimental group 1 design:

Experimental group 2 design:

Which of the following typically characterizes a tropical rainforests

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.

The most effective way to provide children with safety messages is to