Answer:
the object of a person's ambition or effort; an aim or desired result.
Explanation:
Answer:
being a doctor means you are more then likely to help people and give people what they need for example a flue shot is done by a doctor.
Explanation:
I'm not really sure I'm just trying to help
Answer:
Mechanical barriers are devices that provide a physical barrier between the sperm and the egg. Examples of mechanical barriers include the male condom, female condom, diaphragm, cervical cap, and sponge. The condom is the only contraceptive method that helps prevent sexually transmitted infections (STIs).
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need is a necessity
desire is a luxury (something you can live without)
Answer:
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body.
Blood is essential. In addition to carrying fresh oxygen from the lungs and nutrients to your body's tissues, it also takes the body's waste products, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all the body's tissues.
Explanation:
