The answer is A. <span>effective length of the tube
In wind instrument, the effective length is not the actual length of the instrument but only the length that the finger holes manage to cover.
The more holes it managed to cover, the higher frequency of vibration it might able to produce, which lead to higher pitch of the instrument.</span>
Klinefelter's syndrome is a result of chromosomal nondisjunction mutations.
<h3>What is Klinefelter's syndrome?</h3>
Klinefelter's syndrome is a result of the presence of an extra X chromosome in germinal cells.
In genetics, this type of mutation is referred to as chromosomal nondisjunction (aneuploidies).
In conclusion, Klinefelter's syndrome is due to chromosomal nondisjunction.
Learn more about chromosomal nondisjunction here:
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Correct answer - A (Elephants have few offspring, so they need to protect them from predators.)
Why? - The herd is led by the oldest and often largest female in the herd, called a matriarch. They live in herds so that the young elephants stay safe from predators.
Answer:
d. dilation of the blood vessels serving the skin and digestive viscera.
Explanation:
Cardiovascular effects of the sympathetic division include all of the following EXCEPT dilation of the blood vessels serving the skin and digestive viscera.
