<span>A boy's first ejaculation generally occurs around age 13 a full year after the body begins producing sperm. While there is the potential for a 13 year old boy to father a child full fertility is reached between the ages of 14 and 16.</span>
Mutalistic Relationship <span />
Answer:
P and S waves travel at known velocities through the Earth. S waves are slower than P waves by a known amount. ... Therefore, the farther a seismic recording station is from the earthquake epicenter the greater will be the difference in time of arrival between the P and S wave.
Explanation:
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Answer:
for number 2 its mosses or lichens