Question

Plz answer this fast ...How are animals classified... Answer should be accurate and enough for 8th standard... I will mark you the brainliest... and follow you...​

Answer 1

Hey mate!

Here is your answer.........

Livings being are generally classified into two kingdoms. They are:

1. Plant kingdom

On the basis of the flowering and non flowering, the plants kingdom are divided into two sub - kingdom.

a. Cryptograms: They are non flowering plants. On the basis of their appearance they are divided into three divisions:

Thallophyta,

Bryophyta

Pteridophyta.

Division: thallophyta

They are very small undeveloped plants

The plant body is not differentiated into, stem, root and leaves.

Reproduction takes place through spores and gametes.

They are unicellular or multiellular.

Thallophytes are further divided into two sub-divisions:

Algae:

They are autotrophs.

Chlorophyll is present.

They are green filamentous plants.

Fungi:

They are heterotrophs.

Chlorophyll is absent.

They grow in moist places.

Bryophyta

Life cycle completes by the alternation of generation

They are the developed plants in comparison to thallophyta.

The plant body is differentiated into stem and leaves and roots are not present.

Vascular tissue is absent.

Pteridophytes

The body is differentiated into roots, stem and leaves.

Complex tissues xylem and phylum are well developed.

They are mostly found and cool and damped places.

Reproduction takes place by the means of spores developed in sporangia.

b. Phanerogams: Phanerogams are the developed seed bearing and flowering plants

It is further divided into two sub divisions:

Sub division Gymnosperms:

They are cone bearing plants.

They grow in dry places.

They bear naked seeds.

Pollination takes place through wind.

Sub division Angiosperms:

They grow both in land and water.

They bear developed flowers.

Their seed are enclosed in true fruits.

They may be herbs, shrubs and trees

2. Animal kingdom

Animal kingdom is divided into two groups:

Vertebrates: Those animals having vertebral column are called vertebrates. They can either be cold blooded like fish amphibian or warm blooded animals like aves.

Invertebrates: Those animals having no vertebral column are called Invertebrates. They are classified into 9 major phyla:

Hope it will help you.......

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