Question

please this question​

Answer 1

question no. 4 :- what is the exact difference between grade of organisation and symmetry explain with example?

Ans :-

GRADE OF ORGANISATION

1) the grade of organisation means the way and organism has different body formation.

2) unicellular organism like Amoeba have single cell in the body and hence the organisation in its body is called protoplasmic grade of organisation.

SYMMETRY

1) symmetry on the other hand shows the base of the body formation.

2) the symmetry can be understood by taking and imaginary cut through the male body and bases on the cemetery there can be three types the types are asymmetric radial symmetry bilateral symmetry....

question no. 5 :- what are the benefits of animal

classification

Ans:-

1) study of animal become convenient.

2) study of you and animals from a group help to understand about the entire animal group.

3) it give idea about the animal evolution.

4) can be easily classified with great accuracy

5) it help to understand the relationship of animal with the other living organism.

6) it has to understand the habit of each animal and its exact role in the nature.

7) it helps understand various adaptation shown by the animals......

hope it will help you.....✌☺️✌

Answer 2

1)

NATURAL NATURAL SYSTEM OF CLASSIFICATION WAS BASED ON VARIOUS CRITERIA IN A BODY ORGANISATION, TYPES OF CELLS, CHROMOSOME,S BIO-CHEMICAL PROPERTIES .

2)

Animalia, Plantae, Fungi, Protista, and Monera

3)

In sub phylum vertebrata , the notochord present in embryos gets replaced by a cartilaginous or bony vertibral column in adults . but in cephelochordates notochord persits throughout the life as such and in urachordates , notochord is present only in larval stages and absent in adults . Thus, it can be said that all vertibrates are chordates but all chordates are not vertibrates .

The characteristic features of the phylum, Chordata, include the presence of a notochord and paired pharyngeal gill slits. In subphylum Vertebrates, the notochord present in embryos gets replaced by a cartilaginous or bony vertebral column in adults. Thus, it can be said that all vertebrates are chordates but all chordates are not vertebrates.

4)

The grade of organisation tells us about the Oraganism composition which is higher cell, tissue,organ And on the basis of composition grade is decided.

Refer the above pic for more information

☝☝

Symmetry is the dividation of Oraganism.

It is of 3 Types

1. Asymmetry

Organism cannot be divided into two halves from any plane. Eg Amoeba

2. Bilateral

Organism can be divided into two halves by cutting from a particular plane. Eg Human

3. Radial

Organism can be divided into two halves from any plane. Eg. Starfish

5)

1. Study of animals become convenient.

2.Study of few animals from a group help us to understand about the entire animal group.

3. It give idea about animal evolution.

4. Animals can be easily identified with great accuracy

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