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At least a half of the total CO(2) fixat...

At least a half of the total `CO_(2)` fixation on earth is carried out thorugh photosysnthesis by

A

angiosperms

B

gymnosperms

C

algae

D

bryophytes.

Text Solution

Verified by Experts

The correct Answer is:
C
Nearly 50% of total carbon dioxide fixation is carried out by algae through photosynthesis. Photosynthesis by algae releases oxygen in the immediate aquatic environment. It is essential for respiration of aquatic life.
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NCERT FINGERTIPS-PLANT KINGDOM-Plant Kingdom
  1. Fusion of two gametes which are dissimilar in size is termed as

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  2. Which type of sexual reproduction is found in volvox?

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  3. At least a half of the total CO(2) fixation on earth is carried out th...

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  4. Match column I with column II and select the correct option from the c...

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  5. Agar-agar is commercially obtained form

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  6. and are unicellular algae, rich in proteins, that are used as food sup...

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  7. Seaweeds are a source of

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  8. Major photosynthetic pigments in green algae are

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  9. Cup-shaped chloroplast in present in

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  10. In most green algae, pyrenoids, the storage bodies, are located in

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  11. Green algae usually have a rigid cell wall made of an inner layer of a...

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  12. A member of class chlorophyceae is

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  13. Read the given statements and select the correct option Statement-1:...

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  14. In Ulothrix, sexual reproduction is by

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  15. Each cell of volvox colony has a structure similar to

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  16. The member of phaeophyceae or brown algae are found primarily in/on

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  17. Which of the following pigments are found in brown algae?

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  18. The "seaweeds" that for the under water forest are

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  19. Laminarin and mannitol, the reserve food of brown algae, are

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  20. Which of the following statements about Phaeophyceae is incorrect?

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