The image shows EKGs of a person with normal heart waves and of a person having tachycardia. Based on this image, what kind of condition is tachycardia? A. The heart beats abnormally fast.
B. The heart beats abnormally slow.
C. The right atrium of the heart stops working. D The left ventricle pumps less blood to the aorta.

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity hurry!