Available Answers

1. 1.

   State if the following statements are true or false. Correct the statement if it is false.

   1. Spirogyra and Volvox are examples of bryophytes.
   2. Bryophyta includes only mosses.
   3. Bryophytes have root-like structures called rhizoids instead of roots.
   4. The leaves of pteridophytes are called fronds.
   5. The lower side of the leaves of ferns bear sori.
2. 2.

   Tick the most appropriate answer.

   1. An example of a flowering plant is
      1. fern
      2. yeast
      3. Spirogyra
      4. rice
   2. well-developed roots, stems and leaves are present in
      1. byrophytes and algae
      2. algae, bryophytes and angiosperms
      3. algae, bryophytes and gymnosperms
      4. ferns, gymnosperms and angiosperms
   3. Biennials complete their life cycle in
      1. two years
      2. one year
      3. three years
      4. ten years
   4. Plants that grow and thrive in water are called
      1. mesophytes
      2. hydrophytes
      3. xerophytes
      4. none of these
   5. Parasites and saprophytes belong to the group
      1. autotrophs
      2. homotrophs
      3. heterotrophs
      4. none of these
3. 3.

   Fill in the blanks.

   1. _____________ are green plants that contain chlorophyll and usually live in stagnant water.
   2. Bryophytes have ___________ instead of roots.
   3. The leaves of ferns are called _____________
   4. In ____________, the seeds are not enclosed in a fruit.
   5. Cuscuta is a ____________
4. 4.

   State if the following statements are true or false. Correct the statement if it is false.

   1. Bryophytes grow in dry areas.
   2. Pteridophytes grow in damp and shady areas.
   3. Plant that have seeds in cones are called ferns.
   4. Dicotyledonous plants have seeds with two cotyledons.
   5. Perennial plants continue to grow and produce seeds every year.
5. 5.

   Differentiate between gymnosperms and angiosperms.

6. 6.

   Differentiate annuals and perennials.