I think its C. Hope it helped.
D Streak. The student is scratching it on white paper to test the streak.
Answer:
B is the right option: I. and III.
Explanation:
In the Fugate family, four children out of seven had a blue complexion. This means that four children expressing such genes that cause blue complexion. These traits are not very common means the family has some hereditary background. According to the doctor, the occurrence of the condition is rarely seen that explains blue complexion does not appear due to environmental change or traveling.
The correct answer is: [D]: "receives venous blood from the lower extremity" .
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Colonists made soap from an animal fat and potassium hydroxide. In interaction of fat and alkali there is a hydrolysis reaction. At the same time salts of a potassium and alcohols are formed.
