Answer:
The correct answer is A.
Explanation:
A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.
So the answer is A.
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Pooping can be primarily affected by Gallbladder disease.
Answer:
Plants adapt to the environment by modifying their leaves, stem and roots.
Explanation:
Answer:
It's secreted into the extracellular fluids. Collects in the lymph fluid, the vascular blood fluid and eventually the excess is secreted via, urine, feces, lung respiratory exhalation gases, sweat, nasal and mouth, throat mucous and saliva, tears, etc.
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Answer: B. Combustion
Lavoisier’s oxygen theory of combustion was one of his most
notable contribution to science and earned him the title of the “father of
modern chemistry”. He recognized the combustible property of oxygen and that phosphorus and other metallic elements increased in terms of weight when burned.