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ICSE Class 7 Biology Question 16 of 16

Classification of Plants — Question 5

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5
Question

Question 5

Give two characteristics and one example for each of the following:

  1. Algae
  2. Fungi
  3. Monocot
  4. Dicot
  5. Bryophyta
  6. Pteridophyta
  7. Gymnosperms
Answer
  1. Two characteristics of Algae are:
    1. They are aquatic in habitat.
    2. They have chlorophyll and hence they are autotrophs.
      Example — Spirogyra
  2. Two characteristics of Fungi are:
    1. Body is composed of thread like structure called hyphae.
    2. Chlorophyll is absent and they show heterotrophic nutrition.
      Example — Agaricus (Mushroom)
  3. Two characteristics of Monocot are:
    1. Seeds have a single cotyledon.
    2. Leaves have parallel venation and roots are fibrous.
      Example — Maize
  4. Two characteristics of Dicot are:
    1. Seeds have two cotyledons.
    2. Leaves with reticulate venation and roots show tap root system.
      Example — Pea
  5. Two characteristics of Bryophyta are:
    1. They have leaves and stems but no roots.
    2. They have root like structure known as rhizoids.
      Example — Moss
  6. Two characteristics of Pteridophyta are:
    1. They have well formed leaves, stems and roots.
    2. They do not produce flowers and seeds.
      Example — Fern
  7. Two characteristics of Gymnosperm are:
    1. Flowers and fruits are absent.
    2. Bear naked seeds which are not enclosed in a fruit.
      Example — Pine