In the first image, those are fake ribs that are attached to the sternum through the costal cartilage
in the second image are real ribs since they are directly attached to the sternum
<h2>Answer:</h2>
Family of Synthetic Elements
<h2>Explanation:</h2>
In chemical Sciences a synthetic element is a chemical element that does not occur naturally on Earth, and it can only be created artificially in the laboratory. So far, 24 synthetic elements have been created in the laboratory and their atomic numbers lie from 95–118.
D. an arctic fox is brown in summer and white in winter
B. Krill
I hope this will help you that is the correct answer
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The answer is D, increasing genetic variation
