<span>Every living organism begins life as a single cell. Unicellular organisms may stay as one cell but they grow too. Multicellular organisms add more and more cells to form more tissues and organs as they grow. </span>
Answer: A. The wave carries molecules of air away from the source of the sound .
Explanation:
They carry a combination of their genetic traits.
<span>. Amplitude is a measure of the amount of energy in a wave. In a transverse wave, amplitude is the measure from the resting position to either the crest (high point of the wave) or to the trough (low point of the wave.)</span>
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation: