1401. Green plants depend on _________ to carry out Photosynthesis?
A. Chlorophyll *
B. Mezophyll
C. Nedophyll
D. None of these
1402. Nitrogen been discovered by Daniel Rutherford in _______ who called it noxious air or fixed air.
A. 1771
B. 1772 *
C. 1773
D. 1774
1403. There are how many species of plants in the world?
A. 150,000
b. 200,000
C. 350,000
D. 250,000 *
1404. Dutch Elm disease is a disease of ______.
A. Plants *
B. Animals
C. Both A & B
D. None of these
1405. IN 1665, using an early microscope, who discovered cells in cork?
A. Gregor Mandel
B. Robert Hooke *
C. Barbara McClintock
D. None of these
1406. The genetic laws of inheritance were discovered by _____.
A. Barbara McClintock
B. Robert Hooke
C. Gregor Mendel *
D. None of these
1407. Who discovered “Jumping genes” by studying maize?
A. Barbara McClintock *
B. Robert Hooke
C. Gregor Mendel
D. None of these
1408. ____ is the study of the relationships between plants and people .
A. Ethnobotany *
B. Botany
C. Phytology
D. None of these
1409. The community together with its non living surroundings is an _____.
A. Population
B. Ecosystem *
C. Community
D. Biosphere
1410. Most common atoms found in biological molecules is (are).
A. Hydrogen
B. Carbon
C. Oxygen
D. All of these