Answer:
None of these is true. (Ans e.)
Explanation:
C) Inhaled chemicals can irritate the throat or nose, damage the lungs, and enter through the lung to the bloodstream.
A) Skin is not impermeable in nature.
B) It is not safe to smoke around hazardous chemicals, as long as you wear gloves, because people can carry hazardous chemicals from cigarette smoke then releasing those compounds into non-smoking environments.
D) Alkaline can denature proteins, and they also break down fats in a process which is known as saponification. Burns from alkalines worse than burns from acids.
The hormone calcitonin is controlled by a negative feedback mechanism because it's release leads to the decrease of calcium blood levels.
<h3>What is negative feedback mechanism?</h3>
A negative feedback mechanism is the defined as a type of regulatory mechanism in the body where by the increased output of a system leads to a decrease of another system.
Therefore, the release of the hormone calcitonin (increased level of calcitonin in the blood) will lead to decrease in blood levels of calcium.
Learn more about hormones here:
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At the top of the body of a water, there is a lot of light from the sun, which also means a lot of solar energy. This allows for a fruitful photosynthesis.
In contrast, at the bottom of the water, there isn't as much, or sometimes any, sun light. Because of this the organisms at the bottom of the body of water
<span>D. must rely on other means than photosynthesis
</span>
Hey do you still need the answer i have the first one but im still working on the rest im in k12 to xD
1) *The
oldest rock layers of rocks are found on the bottom, well the youngest rocks
are found on top. The different colors of these layers are caused by many different
minerals and materials and a main two of the main rolls are iron and climate
that is what i have for the first one
