Question

What are angiosperms?​

Answer 1

Answer:

this word is mean from two greek words: angio means covered and sperma- means seed. these are also called flowering plants.the seed 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 seed having a single cotyledon are called monocotyledonous or monocots. plants with seeds having two cotyledons are called dicots

Answer 2

Angiosperm:- They are very large group of plants and occur in wide range of habitats.

Angiosperms are of two types-:

(i) Monocotyledon:- Those which have only one cotyledon are known as Monocotyledon plants.

Example:- Grass and cerals.

(ii) Dicotyledons:- Those which have two cotyledons are known as Dicotyledon angiosperms.

Example:- Pulses

Some points related with angiosperms are as follows:-

• In them anther and filament forms stamen or the male sex organ.
• After the process of meiosis pollen grains are formed in the anther.
• And then pollen grains are carried to the stigma with help of wind or with any other natural process.
• Ovary, stigma and style forms female sex organ in them.
• One or more than one ovules are produced in the ovary.
• Nucellus is the diploid tissue which forms body of the ovule.
• Wolfia is the smallest angiosperm while Eucalyptus is the largest tree.

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