Planets are biggest. Asteroids are second biggest. Comets third, and Meteoroids are the smallest
You are not supposed to begin the observation of specimens with oil immersion lens.
The microscope is an instrument used in science laboratories to study specimen that cannot be seen with the naked eyes.
The specimen for viewing through a microscope are usually prepared as thin slices or sections.
Among the various parts of the microscope are the x10, x40, and x 100 objective lens.
The x100 objective lens is known as the oil immersion lens because oil is added while using the lens to reduce the amount of light refraction thereby allowing more light to pass through the narrow diameter of the high power objective lens.
The x10 objective which is of lower power, should be used to focus the specimen while the higher power objective which is the x100 oil immersion used for closer observation.
Therefore, you are not supposed to begin the observation of specimens with oil immersion lens.
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brainly.com/question/13691610
I believe it’s B don’t believe me off the bat though
Answer:
A. temperature of the reaction
B. amount of enzyme
E. pH of the reaction
Explanation:
Temperature should be kept constant because enzymes operate at different activity rates depending on the temperature. The same goes for the pH as well with different enzymes having different optimal pH levels.
The amount of enzyme should be kept constant as well because different concentrations of enzymes can determine how fast the reaction will occur.
Essentially anything that could affect enzyme activity apart from substrate concentration should be kept constant.
