Sets
Biology Set 28
9 questions 1. The menstrual cycle generally recurs every:
2. The blood component that helps in clotting at the site of injury is:
3. Consider the following statements about excretion in plants:
(I) Many waste products are stored in cellular vacuoles.
(II) Waste products may be stored in leaves that fall off.
(III) Plants never excrete any waste substance into the soil around them.
Which of the above is/are correct?
4. Which of the following cells lacks a cell wall?
5. The growth of roots downward and shoots upward in response to the pull of earth is called:
6. According to WHO, health is a state of complete:
7. The diameter of the visible field of a microscope is 3 mm, and 12 cells lie along it in a straight line. The estimated size of one cell is:
8. Consider the following statements:
(I) Microorganisms are found in hot water springs and snow-cold zones.
(II) Microorganisms may be unicellular or multicellular.
(III) Microorganisms cannot live inside the bodies of plants and animals.
Which of the above is/are correct?
9. The flexible rod-shaped structure used as a major criterion for classifying animals into non-chordata and chordata is the: