There are _________ hypothesis which may explain opening and closing of stomata?

Related Mcqs:

An infectious disorder of respiratory system is_________________?

A. Cancer B. Asthma C. Tuberculosis D. Emphysema...

The type of plastids which help in pollination is_________?

A. Chromoplasts B. Leucoplasts C. Chloroplasts D. All of these...

Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from ________ surface of Golgi apparatus:

A. Forming face B. Maturating face C. Any of them D. None of these...

One celled green ptotists are included in___________?

A. Monera B. Algae C. Slime molds D. Plants...

All of the following veins carry deoxygenated blood except

A. Superior vena cava B. Inferior vena cava C. Hepatic vein D. Pulmonary vein...