Q.1) Differentiate between:
a) Phanaerogam and Cryptogams
b) Pisces and Amphibia
c) Amphibia and Reptilia.
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Cryptogamae: This sub-kingdom includes plants which do not flower in their life time.
*Plant body is not well differentiated into stem, leaves etc.
*Reproductive organs are hidden.
* These are less evolved plants.
*These plants do not bear seeds.
*These can reproduce through spores.
*Cryptogams are further divided into three groups: Thallophyta, Bryophyta and Pteridophyta.
Phanerogamae: This sub-kingdom includes plants which flower to perform sexual reproduction.
*Plant body possess well-formed stem, leaves and roots.
*These are highly evolved plants.
*These plants produce seeds.
*Seeds germinate into new plants.
*Phanerogams are further classified into Gymnosperms and Angiosperms.
Amphibians has three chambered heart whether Pisces has two chambered heat.......... amphibians respirate through gills whether Pisces respirate through gills or lungs.....Pisces have scales on their body but amphibians have no scales on their body
S. No. Amphibians Reptiles
1. These are aquatic or terrestrial. These have terrestrial habitat.
2. They breathe through lungs or gills. The breathe only through lungs.
3. They have smooth, slimy, non-scaly exoskeleton. Their body is covered by waterproof scaly exoskeleton.
4. Heart is three-chambered. Heart is three chambered (except crocodiles).
*Plant body is not well differentiated into stem, leaves etc.
*Reproductive organs are hidden.
* These are less evolved plants.
*These plants do not bear seeds.
*These can reproduce through spores.
*Cryptogams are further divided into three groups: Thallophyta, Bryophyta and Pteridophyta.
Phanerogamae: This sub-kingdom includes plants which flower to perform sexual reproduction.
*Plant body possess well-formed stem, leaves and roots.
*These are highly evolved plants.
*These plants produce seeds.
*Seeds germinate into new plants.
*Phanerogams are further classified into Gymnosperms and Angiosperms.
Amphibians has three chambered heart whether Pisces has two chambered heat.......... amphibians respirate through gills whether Pisces respirate through gills or lungs.....Pisces have scales on their body but amphibians have no scales on their body
S. No. Amphibians Reptiles
1. These are aquatic or terrestrial. These have terrestrial habitat.
2. They breathe through lungs or gills. The breathe only through lungs.
3. They have smooth, slimy, non-scaly exoskeleton. Their body is covered by waterproof scaly exoskeleton.
4. Heart is three-chambered. Heart is three chambered (except crocodiles).
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