C
Explanation:
that's just what I learned in school
Systemic circulation is between the heart and the rest of the body. Therefore arteries and veins are needed.
Genes. you inherit 50% from your mom and dad. I believe that is the answer....
The example of the scientific practice is missing here but it should always involve the application of the scientific method.
<h3>What is the scientific method?</h3>
The scientific method is a series of steps by which researchers can collect empirical evidence that enables them to test hypotheses and generate scientific theories.
The scientific method starts with the observation of a given phenomenon from the real world, which then enables the raising of a question that in turn enables the formulation of a plausible explanation called hypothesis.
In conclusion, the example of the scientific practice is missing here but it should always involve the application of the scientific method.
Learn more about the scientific method here:
brainly.com/question/17216882
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