Which of the following has non flagellated male and female gametes?

  1. Fucus
  2. Spirogyra
  3. Ulothrix
  4. Volvox
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. Isogamous means

  1. Both the gametes are equally motile
  2. Both the gametes are unequal in terms of motility
  3. Both the gametes are similar in size
  4. All of these
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Anisogamous

  1. Gametes dissimilar in size
  2. Gametes are similar in size but not in motility
  3. Gametes are similar in motility but not in size
  4. Gametes are similar in size and motility
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Oogamous

  1. Non-motile male gamete
  2. Large male gamete
  3. Non-motile female gamete
  4. Small female gamete
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. Which of the following is an example of anisogamous reproduction in Algae?

  1. Udorina
  2. Volvox
  3. Fucus
  4. Spirogyra

Concept Questions :-

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Which of the following is an example of oogamous reproduction?

  1. Spirogyra
  2. Ulothrix
  3. Udorina
  4. Volvox
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Which of the following is an example of isogamous reproduction?

  1. Ulothrix
  2. Udorina
  3. Volvox
  4. Fucus
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Which of the following is an example of oogamous reproduction?

  1. Ulothrix
  2. Udorina
  3. Spirogyra
  4. Fucus
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Algae are useful

  1. Because at least half of the total carbon dioxide fixation on Earth is carried out by algae through photosynthesis.
  2. Algae being photosynthetic can increase the level of dissolved oxygen in their immediate environment
  3. They are primary producers of energy rich compounds and form the basis of the food cycles of all aquatic animals
  4. All of the above
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Hydrocolloid is

  1. Water soluble substance
  2. Water holding substance
  3. Hydrogen gas containing substance
  4. Oxygen gas containing substance
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