Ozone depletion occurs commonly due to_______________?
Ozone depletion occurs commonly due to_______________?
A. Carbon dioxide
B. Chlorofluorocarbons
C. UV rays
D. Deforestation
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The opening and closing of stomata is directly controlled by the___________?
The opening and closing of stomata is directly controlled by the___________?
A. Temperature
B. pH
C. Light
D. None of theseAbscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?
Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?
A. Gibberellins
B. Cytokinins
C. Auxins
D. Ethene.Which of the following excretory structure is associated with gut of the organism?
Which of the following excretory structure is associated with gut of the organism?
A. Protonephridium
B. Metanephridium
C. Malpighian tubules
D. NephronsThe number of daughter paramecia produced following conjugation is _______ ?
The number of daughter paramecia produced following conjugation is _______ ?A. 8 from one conjugant
B. 8 from two conjugants
C. 16 from two conjugants
D. 8-16 from two conjugantsLocomotory structures are not found in which of the following group?
Locomotory structures are not found in which of the following group?
A. Amoebas
B. Zooflagellates
C. Ciliates
D. ApicomplexansWho coined the term Animalcules for microorganisms like Bacteria and protozoa______________?
Who coined the term Animalcules for microorganisms like Bacteria and protozoa______________?
A. Robert Koch
B. Louis Pasteur
C. Alexander Fleming
D. Leeuwenhoek