This word is made from two Greek words: angio means covered and sperma– means seed. These are also called flowering plants.
The seeds develop inside an ovary which is modified to become a fruit. Plant embryos in seeds have structures called cotyledons.
Cotyledons are called ‘seed leaves’ because in many instances they emerge and become green when the seed germinates.

The angiosperms are divided into two groups on the basis of the number of cotyledons present in the seed.

Plants with seeds having a single cotyledon are called monocotyledonous or monocots.

Plants with seeds having two cotyledons are called dicots.

Fig – Angiosperm

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