Study & Learn
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
C. Muscle weakness and vision problem
Explanation
Vitamin E deficiency can cause nerve and muscle damage that results in loss of feeling in the arms and legs, loss of body movement control, muscle weakness, and vision problems. Another sign of deficiency is a weakened immune system.
Correct answer
B. Maria, or seas, even though there is no water on the Moon
Explanation
Maria, or seas, even though there is no water on the Moon is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Typhus
Explanation
Typhus is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Sulfuric acid
Explanation
Sulfuric acid is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Stethoscope
Explanation
The stethoscope is an instrument used for auscultation, or listening to sounds produced by the body. It is used primarily to listen to the lungs, heart, and intestinal tract. It is also used to listen to blood flow in peripheral vessels and the heart sounds of developing fetuses in pregnant women.
Correct answer
C. Ocean Pressure
Explanation
Ocean Pressure is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. smallest particle of an element which can undergo a chemical reaction
Explanation
smallest particle of an element which can undergo a chemical reaction is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. 37 °C
Explanation
A healthy body functions best at an internal temperature of about 37°C (98.6°F). But everyone has their own individual “normal” body temperature, which may be slightly higher or lower. Our bodies also constantly adapt their temperature to environmental conditions. The normal human body temperature is often stated as 36.5–37.5 °C (97.7–99.5 °F). In adults a review of the literature has found a wider range of 33.2–38.2 °C (91.8–100.8 °F) for normal temperatures, depending on the gender and location measured.
Correct answer
A. Saturn, Neptune, Nitrogen
Explanation
Saturn, Neptune, Nitrogen is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Precision and accuracy should go side by side in a scientific work
Explanation
Precision and accuracy should go side by side in a scientific work is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.