Why can corn seeds germinate in total darkness?
A. The seed coating absorbs water.
B. The endosperm provides the embryo with the nutrition needed during the initial germination stages.
C. Seeds are heterotrophic and can capture nutrients from the soil.
D. Soil microbes degrade the seed coating allowing the seed to germinate.
Answer: B
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In the following gene sequence, the original sequence is ABC* DEFGH. It now reads ABC* DGFEH. The * indicates the centromere. This type of mutation is a(n)
A) nonsense mutation. B) inversion. C) translocation. D) duplication. E) point mutation.
The exchange of oxygen and carbon dioxide occurs in the human lungs in the ____
a. bronchi b. alveoli c. bronchioles d. trachea e. glottis
What is one reason why the classification of protists is difficult?
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What was the purpose of Stanley Miller's experiment?
What will be an ideal response?