<span>overall, around twenty million teenagers contract an STI (sexually transmitted infection) each year. </span>(The half of them are from U.S.)<span>
A sexually transmitted infection (STI) is an infection that is transmitted between partners during different forms of sexual intercourse. This infection can lead to an infectious disease, formerly called venereal disease (the name comes from Venus, goddess of love)All sexual practices that involve mutual genital or oro-genital contact with another person, or genital fluids, are considered to carry a risk of transmitting an STI. Each STI has a different risk and severity.
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The correct answer is B. Natural selection occurs through generations and is in which organisms best suited to their environment survive.
Answer:
The answer is <u>D</u> - a plant without fertilizers
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<span>For the Yanomamo, the most important source of nutrition
for them is cooking plantains or bananas. The main crops that they usually
cultivate are bananas and cassava which are planted in their gardens. When the men
are known to be hunters, fishers and horticulturists, the women are the ones
who cultivate their land or gardens. The diet of the Yanomamo are usually low
in edible salt. </span>
I believe you use the pH scale with comparing acids and bases.
