D Streak. The student is scratching it on white paper to test the streak.
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I WOULD THINK IT WOULD BE THE MONTH OF NOVEMBER
The gene theory declares that all organisms contain coded information in DNA which dictates the form and function of organisms.
<h3>What does the gene theory state?</h3>
Gene theory is one of the major principles of biology that explains the inheritance of traits coded by gene from parents to offspring.
This theory further explains that genes are located on chromosomes and consist of DNA, which stores them.
Therefore, the gene theory declares that all organisms contain coded information in DNA which dictates the form and function of organisms.
Learn more about gene theory at: brainly.com/question/4432306
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Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!