NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM PLANTAE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following characteristics are the advancements achieved by Angiosperms compared to PterophytaI. Pollen tube to transfer male gametesII. HeterosporousIII. Presence of xylem vessels to provide structural supportIV. Sporophyte generation as the dominant generation
A
I, II and III
B
I, II and IV
C
II, III and IV
D
I, II, III and IV
Explanation: 

Detailed explanation-1: -Angiosperms are heterosporous forming male and female spores which is critical for seed habit. Pteridophytes are mostly homosporous. Some pteridophytes like Selaginella is heterosporous but there is no seed formation.

Detailed explanation-2: -Angiosperms and gymnosperms both utilize seeds as the primary means of reproduction, and both use pollen to facilitate fertilization. Gymnosperms and angiosperms have a life cycle that involves the alternation of generations, and both have a reduced gametophyte stage.

Detailed explanation-3: -Angiosperms, are also known as flowering plants and having seeds enclosed within their fruit. Whereas gymnosperms have no flowers or fruits and have naked seeds on the surface of their leaves.

Detailed explanation-4: -The presence of vessels is a distinguishing trait of angiosperms. Every angiosperm will produce flowers at some point in its lifetime. In plants, flowers are reproductive organs that allow genetic information to be exchanged.

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