Everyday Science MCQs

5120 MCQs (Page 406 of 512)

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Excretory system of platyhlminthes consists of___________?

A. Nephridia
B. Flame cells
C. Malpighian tubules
D. Nephrons

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Pseudocoelem develops from____________?

A. Blastopore
B. Plastoquinone
C. Blastocoel
D. Splitting of mesoderm

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Exoskeoeton of coelenterates terates is made up to__________?

A. Calcium
B. Silica
C. Chitin
D. Both a & b

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Porifera range in size from__________?

A. Few millimeter wide to more than one meter tall
B. Few centimeter wide to more than one meter tall
C. Few decimeter wide to more than one meter tall
D. One meter wide to more than millimeter tall.

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Enteron in coelenterates acts as___________?

A. Digestive cavity
B. Body cavity
C. Transporting cavity
D. All of these

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Chlorophyll is insoluble in_____________?

A. Carbon tetrachloride
B. Alcohol
C. Organic solvents
D. Water

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Which of the light is mainly absorbed by the plants?

A. Orange
B. Red
C. Green
D. Both a and b

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Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________?

A. Bacteria
B. Algae
C. Protenema
D. Cyanobacteria

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light used in photosynthesis ranges from:__________?

A. 300 – 700 nm in wavelength
B. 350 – 750 nm in wavelength
C. 380 – 750 nm in wavelength
D. 390 – 790 nm in wavelength.

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Which of the following light is least absorbed by the plants?

A. Orange
B. Red
C. Blue
D. Green

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