Answer:
A. Calf stretch
Explanation: ballistic stretches involve trying to force a part of the body beyond its range of motion.
In 1798 the first smallpox vaccine was developed.Over the 18th and 19th centuries,systematic implementation of mass smallpox immunization culminated in its global eradication in 1979.
Explanation:
Like most stars in our universe, the Sun is on the main sequence stage of its life. This means nuclear fusion reactions in its core fused hydrogen into helium. However, this process cannot last forever since there is a finite amount of hydrogen in the core of the Sun. Currently it has more than 72% hydrogen.
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Answer:
There are only three options but the most correct on is use safer medical devices
Tropism is the growth response of a plant caused by a stimulus.gravitropism is the growth response of a plant to gravity.the roots grow downward towards gravity.which is called positive gravitropism.the stem and upper part of a plant grow upward,away from gravity,which is called negative gravitropism
