MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
B. Eyes
Explanation
Eyes is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Testa
Explanation
The outer protective covering of a seed. The seed coat develops from the integument of the ovule. Also called testa.
Correct answer
C. silk production
Explanation
silk production is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Aedes Aegypteis
Explanation
Aedes Aegypteis is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Carbon monoxide
Explanation
Carbon monoxide is harmful when breathed because it displaces oxygen in the blood and deprives the heart, brain and other vital organs of oxygen. Large amounts of CO can overcome you in minutes without warning — causing you to lose consciousness and suffocate.
Correct answer
D. Electrical Conductance
Explanation
Electrical Conductance is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Vitamin D
Explanation
Vitamin D is the vitamin primarily produced in the skin in response to sunlight, specifically ultraviolet B (UVB) radiation. When UVB rays strike the skin, they trigger the conversion of a compound called 7-dehydrocholesterol into vitamin D, a vital nutrient for health.
Correct answer
A. West to East
Explanation
West to East is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Apiculture
Explanation
Apiculture is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
E. Temperature of the place where it is kept
Explanation
Temperature of the place where it is kept is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.