State reasons for the following:
$(a)$ Bryophytes are called amphibians of the plant kingdom.
$(b)$ Gymnosperms are called so (naked-seeded plants).
$(c)$ Birds have wings and feathers.
$(a)$ Bryophytes are called amphibians of the plant kingdom.
$(b)$ Gymnosperms are called so (naked-seeded plants).
$(c)$ Birds have wings and feathers.
(N/A) Bryophytes are called amphibians of the plant kingdom because they live on land but require water for fertilization,as their male gametes are motile and need a water medium to reach the female gametes.
$(b)$ Gymnosperms are called so because the term 'Gymnosperm' is derived from Greek words 'gymnos' meaning naked and 'sperma' meaning seed. They produce seeds that are not enclosed within an ovary or fruit.
$(c)$ Birds have wings and feathers to facilitate flight. Wings provide the necessary surface area for lift,while feathers help in streamlining the body,maintaining body temperature,and providing the aerodynamic structure required for flying.
$(b)$ Gymnosperms are called so because the term 'Gymnosperm' is derived from Greek words 'gymnos' meaning naked and 'sperma' meaning seed. They produce seeds that are not enclosed within an ovary or fruit.
$(c)$ Birds have wings and feathers to facilitate flight. Wings provide the necessary surface area for lift,while feathers help in streamlining the body,maintaining body temperature,and providing the aerodynamic structure required for flying.
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Similar Questions
Fill in the boxes given in the figure with appropriate characteristics or plant groups.
Medium
View SolutionState whether the following statements are True $(T)$ or False $(F)$:
$(a)$ Gymnosperms differ from Angiosperms in having covered seeds.
$(b)$ Non-flowering plants are called Cryptogamae.
$(c)$ Bryophytes have conducting tissue.
$(d)$ Funaria is a moss.
$(e)$ Compound leaves are found in many ferns.
$(f)$ Seeds contain an embryo.
$(a)$ Gymnosperms differ from Angiosperms in having covered seeds.
$(b)$ Non-flowering plants are called Cryptogamae.
$(c)$ Bryophytes have conducting tissue.
$(d)$ Funaria is a moss.
$(e)$ Compound leaves are found in many ferns.
$(f)$ Seeds contain an embryo.
Medium
View SolutionWhich among the following has specialised tissue for the conduction of water?
$(i)$ Thallophyta
$(ii)$ Bryophyta
$(iii)$ Pteridophyta
$(iv)$ Gymnosperms
$(i)$ Thallophyta
$(ii)$ Bryophyta
$(iii)$ Pteridophyta
$(iv)$ Gymnosperms
Medium
View Solution$A$ plant specimen was found without differentiated roots.
$(a)$ Which plant structure helps in attaching this plant to the substratum?
$(b)$ To which group would you classify this plant?
$(c)$ Which plant could it be?
$(a)$ Which plant structure helps in attaching this plant to the substratum?
$(b)$ To which group would you classify this plant?
$(c)$ Which plant could it be?
Easy
View SolutionState appropriate terms for the following:
$(i)$ Amphibians of the plant kingdom.
$(ii)$ Plants not having well-differentiated body design.
$(iii)$ Single-celled,eukaryotic,and photosynthetic organism.
$(i)$ Amphibians of the plant kingdom.
$(ii)$ Plants not having well-differentiated body design.
$(iii)$ Single-celled,eukaryotic,and photosynthetic organism.
Medium
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