The presence and/or number of flagella Gram staining shape and arrangement of cells
Answer: c. iris – controls the pupil
Explanation:
The iris, a structure which is primarily made up of smooth muscles. These smooth muscles surrounds the pupil. The light enters the eye through pupil which is a black hole present in the middle of the eye. It allows the light to strike the retina. It controls the size of the pupil this way it helps in regulating the amount of light entering the eye. The pupil becomes wider in the darkness and becomes narrower when the light intensity is more. These actions are controlled by iris.
Scientific argumentation is important as it helps determine whether there is enough evidence to support a claim. So the correct option C.
<h3>What is a scientific argumemtation? </h3>
The kind of discussion between scientists where they disagree about scientific claims using arguments or claims based on their own knowledge is called scientific argumentation.
The ultimate aim of this practice is to improve the explanations and experimental designs of other scientists so that their claims are refined and without any errors.
This practice also determines whether the evidence presented to support a scientific claim is sufficient or not.
Therefore the correct option is C.
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Answer: Distance
Explanation: The amount of space between two points, measured along the actual path, which connects the two points, is called distance. The amount of space between two points, measured along the minimum path which connects them, is called displacement.
