Q2 of 8 Page 173

Pteridophytes are vascular cryptogams. Reason out in short.

Cryptogams are non-seeded, non-flowering plants that reproduce by spores. Pteridophytes do not produce seeds. They are the first vascular plants because they bear xylem and phloem (vascular system) for food and water conduction.


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2

Antibiotics are extracted from bacteria and fungi. They stop the growth of microorganisms and cure diseases.

Give any two antibiotics obtained from fungi.

 3

How are the following organisms called?

Algae that prepare their own food.

 3

How are the following organisms called?

Fungi that either depends on living organisms or non-living things for their food.

 3

How are the following organisms called?

An organism having both algal and fungal characters