During the resting heart, that is, the number of times the heart beats per minute while the body is relaxed and at rest does not change significantly with age; But with age, there are changes in the ability of the heart to increase its rate during exercise and other moments of stress. Younger hearts usually usually speed up more faster than older ones when challenged. The maximum heart rate, the highest heart rate one can achieve as measured by a cardiac stress test declines gradually in adults as they age. The cause of this is slowing down of the heart's pacemaker cells.
Sweat or
perspiration occurs when the body’s core/internal temperature rises. This
phenomenon naturally occurs to help maintain and control the regular body
temperature of humans. Without sweat, the body will over heat and may lead to
heat exhaustion, heat stroke, or worst, death. Sweat glands that cover the
entire body are responsible for perspiration to maintain its homeostasis; as
the water in the sweat evaporates, the surface of the skin cools, regulating
and maintaining overall body temperature.
Perspiration/sweat
is mostly composed of water but it also contains some salts that are dissolved
and evaporated as well on the skin.
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Answer:
I don't understand the question sorry
Answer:
Their bodies are smaller and they body systems are underdeveloped.
Explanation:
Think about concentration when 'containers' of liquid contain different volumes.
