A variable that is not dependent, e.g. when inserting soap into water to test its surface tension, the independent is soap. It is the change that is controlled in the experiment.
Answer: 6
Explanation:
A DNA strand has 3 distinct frame, thus for both strands, it will require 6 strands.
One special feature of bacterial cells that helps it survive in hostile environment is its ability to form endospores.
Answer:
The correct answer is B. In the human eye, the greatest amount of refraction occurs when the light passes from the air into the cornea.
Explanation:
The ocular refraction refers to the refraction that occurs in the light coming from the objects when crossing the different parts of the eye, causing the images to concentrate on the retina.
When the light rays, after crossing the cornea and the lens, are projected on the retina at a single point creating a clear image that is transmitted to the brain for processing, we talk about normal refraction.
