<em>A megaphone used by a cheerleader can allow people on the opposite side of a field to hear her better because;</em>
D. Solid objects can change the direction of sound waves; megaphones allow users to determine the general direction of the sound.
<u>Determination of the general direction of the sound lessens its dispersion and thus, it reaches the observers at a higher intensity, hence it being louder.</u>
<span>Population sizes decrease at higher trophic levels.
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Answer:
alternating sugar (ribose) and phosphate groups also -adenine (A), uracil (U), cytosine (C), or guanine (G).
Answer:
Explanation:
The greater the forces of attraction the higher the boiling point or the greater the polarity the higher the boiling point. ... The other molecules are slightly polar and show the increase in boiling point with molecular weight which is normal. Instead, water boils at +100 C, which is very abnormal.
Hope this helps a little
The probability is 1/2. This is because half are likely to be carriers and 1/2 are likely to have hemophilia.
