Basis of Classification

Q.

If the organisation of cell is destroyed due to some physical or chemical influence what will happens

Q.

What is ectoderm, mesoderm and endoderm?

Q.

What is a germ layer? Please explain in very simple words.

Q.

Comment on the statement "Peripatus is said to be a connecting link between annelids and arthropods."

Q.

What are the parasitic adaptations of leech?

Q.

How is complete digestive tract different from incomplete digestive tract?

Q.

What are the advantages of multicellularity

Q.

Which one of the following groups of animals is bilaterally symmetrical and triploblastic ?

1. Coelenterates (cnidarians)

2. Sponges

3. Ctenophores

4. Aschelminthes (roundworms)

Q.

Animals in which the body cavity is not lined by mesoderm, and instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm are:

1. Acoelomates

2. Pseudocoelomates

3. Coelomates

4. Haemocoelomates

Q.

Who proposed the three-domain system of classification?

1. Haeckel

2. H. Whittaker

3. John Ray

4. Carl Woese

Q.

What is trophectoderm?

Q.

A group of genera with certain common characteristics form a ________.

1. family

2. class

3. order

4. genus

Q. Define the process of differentiation?

Q.

One example of animals having a single opening to the outside that serves both as a mouth as well as the anus is?

1. Fasciola

2. Octopus

3. Asterias

4. Ascidia

Q.

Why is coelenterate also called cnidaria?

Q.

The connecting link between Annelids and Mollusks is:

1. Peripatus

2. Neopilina

3. Proterospongia

4. Archaeopteryx

Q. The body cavity present between the body wall and the gut wall of vertebrates is called .

1. mesoderm
2. coelom
3. ectoderm
4. endoderm

Q. If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen? (question from NCRT text book)

Q.

Q1. If the organisation of a cell is destroyed due to some physical of chemical influence, what will happen?

Q.

What is the classification of the animal kingdom on the basis of the organization?

Q.

What Is Hermaphrodite?

Q.

Differences between protozoa and metazoa

Q. What are poikilothermic animals?

Q.

Bilateral, dorsiventral symmetry is found in ___________________

Q.

Amoeba belongs to the kingdom Monera.

1. True
2. False

Q.

What Is The Benefit Of Having An Operculum?

Q.

In the five kingdom system, the main basis of classification:

1. Structure of nucleus

2. Nutrition

3. Structure of cell wall

4. Asexual reproduction

Q.

Question 34
Meena and Hari observed an animal in their garden. Hari called it an insect while Meena said it was an earthworm. Choose the character from the following which confirms that it was an insect.

(a) Bilateral symmetrical body
(b) Body with jointed legs
(c) Cylindrical body
(d) Body with little segmentation

Q.

Give two examples of Porifera or Sponges. [1 MARK]

Q.

Is kidney mesoderm or endoderm?