Based on the results of the experiment, the higher the temperature, the faster is the rate of gas production. After 25 minutes, the 35^oC setup yielded more bubbles than the 20^oC setup.

Correct Answer: Option 2 90mm

Approximation or estimation typically means finding upper or lower bounds of a quantity that cannot readily be computed precisely and is also an educated guess. Since we are limited by the ruler, we will just estimate the length of the earthworm based on the number of centimeters covered. One centimeter is composed of 10 millimeters. Based on the diagram, the earthworm covered 9cm which is equal to 90mm.

• A related plant might provide a cheaper source of a substance.
• Two related plants could produce similar substances of medicinal value to be used for production of medicines

• DNA Sequences
• Variety of enzymes present
• Structure of molecules present