Answer:
False
Explanation:
STD's stand for Sexually Transmitted Diseases. So in the name it can only be spread through sexual contact.
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The heart is the system’s pump and the blood vessels are like the delivery routes and it is a muscle. The pumps are the beat.
The heart is a muscle about the size of a fist and it is the muscle in the body that works the hardest.
The statement that the heart muscle rests only between beats is true.
Answer:
Explanation:
The scientific community has always displayed an interest in the understanding of how life began. A rekindled interest emerged in the 1800s as new geologic and biologic discoveries added to the available knowledge.
Answer: all of these choices are correct
Explanation:
Any one can get no matter how old you are.
Answer:
The pulmonary artery carries blood from the heart to the lungs.
Explanation:
