Animal Kingdom NCERT

What would be true for an animal that exhibits the kind of body symmetry shown in the given diagram?

I: This is seen in sponges, cnidarians, ctenophores and larval echinoderms.
II: This type of body symmetry is generally seen in animals which move actively in their environment.

Consider the given two statements:
Statement I: Sponges exhibit a cellular level of organization.
Statement II: Cnidarians have a tissue level of organization.
In light of the above statements, choose the most appropriate answer from the options given below:

A complete digestive system is present in the members of all the following phyla of Animal Kingdom except:
I. Platyhelminthes
II. Mollusca
III. Annelida

Which of the following will be true for both animals with body plan A and B as shown in the given figure?

Regarding bilateral symmetry:
I. Bilateral symmetry is the body plan where the body of the animal can be divided into two identical halves through any plane passing through the central axis of the body.
II. While Ctenophores and adult Echinoderms have bilateral symmetry, Annelida and Arthropods have radial symmetry.
In light of the above statements, choose the most appropriate answer from the options given below:

Flatworms will exhibit all the following except:

Consider the given features:
A: Body cavity lined by mesoderm
B: The mesoderm present as scattered pouches in between the ectoderm and the endoderm
Select the correct option of animals having the features A and B :

\(
\begin{array}{|l|l|l|}
\hline & \text { A } & \text { B } \\
\hline \text { 1. } & \text { Aschelminthes } & \text { Annelids } \\
\hline \text { 2. } & \text { Platyhelminthes } & \text { Ctenophores } \\
\hline \text { 3. } & \text { Arthropods } & \text { Molluscs } \\
\hline \text { 4. } & \text { Arthropods } & \text { Aschelminthes } \\
\hline
\end{array}
\)

Examine the figures A, B and C. In which one of the four options all the items, A, B and C are correct?

\(
\begin{array}{|c|c|c|c|}
\hline
\text{No.} & A & B & C \\
\hline
1 & \text{Sycon} & \text{Euspongia} & \text{Spongilla} \\
\hline
2 & \text{Euspongia} & \text{Spongilla} & \text{Sycon} \\
\hline
3 & \text{Spongilla} & \text{Sycon} & \text{Euspongia} \\
\hline
4 & \text{Euspongia} & \text{Sycon} & \text{Spongilla} \\
\hline
\end{array}
\)

In metameric segmentation:
I. The body is divided into segments only externally.
II. There is a serial repetition of at least some organs.

The notochord:
I. is derived from embryonic mesoderm.
II. is present on the ventral side during embryonic development in chordates.

The given figure shows broad classification of Kingdom Animalia based on common fundamental features. Which of the following can be true based on the information given in the figure?

a.  Sponges represent ‘A‘
b. ‘B‘ includes flatworms
c.  Animals in ‘C‘ are triploblastic
d.  Radial symmetry is seen in adults of animals in ‘D‘
e.  Animals in ‘E‘ have a complete digestive system

Which of the following is not a feature of Porifera?

Water exits from a sponge through the:

Regarding the cell shown in the given figure:

I: The name Cnidaria is derived from this cell
II: The stinging capsule present in the cell is called as nematode
III: These cells help cnidarians in anchorage, defence and in capturing the prey

Identify the incorrect statement regarding sponges:

Match each item in Column I with one in Column II and select the correct match from the codes given:

\(
\begin{array}{|l|l|l|l|}
\hline & \text { COLUMN I } & & \text { COLUMN II } \\
\hline \text { A } & \text { Spongilla } & \text { P } & \text { Sea-fan } \\
\hline \text { B } & \text { Euspongia } & \text { Q } & \text { Brain coral } \\
\hline \text { C } & \text { Gorgonia } & \text { R } & \text { Fresh Water sponge } \\
\hline \text { D } & \text { Meandrina } & \text { S } & \text { Sea-pen } \\
\hline \text { E } & \text { Pennatula } & \text { T } & \text { Bath sponge } \\
\hline
\end{array}
\)

Codes:

\(
\begin{array}{|l|l|l|l|l|l|}
\hline & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\
\hline 1 . & \text { T } & \text { R } & \text { P } & \text { Q } & \text { S } \\
\hline 2 . & \text { R } & \text { T } & \text { P } & \text { Q } & \text { S } \\
\hline 3 . & \text { T } & \text { R } & \text { Q } & \text { S } & \text { P } \\
\hline 4 . & \text { R } & \text { T } & \text { S } & \text { P } & \text { Q } \\
\hline
\end{array}
\)

The given flow chart shows the classification scheme of sub-phylum Vertebrata. Identify A, B, C and D.

\(
\begin{array}{|l|l|l|l|l|}
\hline & \text { A } & \text { B } & \text { C } & \text { D } \\
\hline \text { 1. } & \text { Phylum } & \text { Cephalochordata } & \text { Urochordata } & \text { Protochordata } \\
\hline \text { 2. } & \text { Division } & \text { Agnatha } & \text { Super-Class } & \text { Pisces } \\
\hline \text { 3. } & \text { Phylum } & \text { Protochordata } & \text { Infra-class } & \text { Jawless fishes } \\
\hline \text { 4. } & \text { Division } & \text { Agnatha } & \text { Sub-division } & \text { Pisces } \\
\hline
\end{array}
\)

Identify the incorrect statement regarding animals belonging to the Phylum Cnidaria:

Consider the following statements regarding basic body plans in Cnidaria:
I. Polyp is sessile and cylindrical form as seen in Hydra and Adamsia.
II. Medusa is umbrella-shaped and free swimming form as seen in Aurelia.

Which of the following is not a feature of Ctenophora?

Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct? 

\(
\begin{array}{|c|c|c|c|c|}
\hline
\textbf{No.} & \textbf{A} & \textbf{B} & \textbf{C} & \textbf{D} \\
\hline
1 & \text{Pleurobrachia} & \text{Cnidoblast} & \text{Aurelia} & \text{Adamsia} \\
\hline
2 & \text{Aurelia} & \text{Adamsia} & \text{Cnidoblast} & \text{Pleurobrachia} \\
\hline
3 & \text{Cnidoblast} & \text{Pleurobrachia} & \text{Adamsia} & \text{Aurelia} \\
\hline
4 & \text{Adamsia} & \text{Aurelia} & \text{Pleurobrachia} & \text{Cnidoblast} \\
\hline
\end{array}
\)

In Obelia:
a. both polyp and medusa forms exist during its life cycle
b. metagenesis, a sort of alternation of generation, is seen
c. polyps produce medusae sexually and medusae form the polyps sexually

Which of the following is not a feature of Ctenophora?

In Ctenophora:
a. body bears eight external rows of ciliated comb plates, which help in locomotion.
b. reproduction takes place only by asexual means.
c. digestion is both extracellular and intracellular.
d. sexes are separate.
The correct statements are:

Triploblastic organization, bilateral symmetry but lack of coelom will be seen in:

Members of the Phylum Platyhelminthes differ from animals belonging to Phylum Annelida and Phylum Arthropoda in:

Examine the figures A, B, C, D, E and F. In which one of the four options all the items, A, B, C, D, E and F are correct ?

Ascaris is characterized by:

Body cavity is the cavity present between body wall and gut wall. In some animals, the body cavity is not lined by mesoderm. Such animals are called

Unlike Arthropods, Annelids:

Identify the incorrect statement regarding animals belonging to Phylum Annelida:

Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct ?

Which of the following is not an Arthropod characteristic ?

Consider the two statements:
Statement I: Planaria is a free-living flatworm and possesses high regeneration capacity.
Statement II: Hooks and suckers are present in parasitic flatworms.

Animals belonging to phylum Chordata are fundamentally characterised by the presence of structure noted as A, B, C and D. Identify A, B, C and D .

Consider the following statements regarding roundworms:
Statement I: Alimentary canal is complete with a welldeveloped muscular pharynx.
Statement II: An excretory tube removes body wastes from the body cavity through the excretory pore.
Statement III: They are dioecious and males are longer than females.
The incorrect statement is/are:

Identify the correct statements regarding arthropods:
I: They are bilaterally symmetrical, triploblastic, non-segmented and pseudocoelomate animals.
II: Arthropoda is the largest phylum of Animalia and includes more than \( 90 \% \) of all species on the earth that are named so far.
III: Insects are arthropods with body consisting of head, thorax and abdomen.

Examine the figures A, B and C. In which one of the four options, all the items, A, B and C are correct ?

Identify the incorrect statement regarding Mollusca:

\(
\begin{array}{|c|l|c|l|}
\hline
& \text{COLUMN I} & & \text{COLUMN II} \\
\hline
\text{A} & \text{Insect reared for producing silk} & \text{P} & \text{Locusta} \\
\hline
\text{B} & \begin{array}{l}
\text{Mosquito acting as vector for Dengue} \\
\text{virus}
\end{array} & \text{Q} & \text{Bombyx} \\
\hline
\text{C} & \text{Gregarious pest} & \text{R} & \text{Limulus} \\
\hline
\text{D} & \text{Living fossil} & \text{S} & \text{Aedes} \\
\hline
\end{array}
\)

Codes:

\(
\begin{array}{|l|l|l|l|l|}
\hline & \text { A } & \text { B } & \text { C } & \text { D } \\
\hline 1 . & \text { Q } & \text { S } & \text { P } & \text { R } \\
\hline 2 . & \text { Q } & \text { S } & \text { R } & \text { P } \\
\hline 3 . & \text { P } & \text { Q } & \text { R } & \text { S } \\
\hline 4 . & \text { R } & \text { P } & \text { Q } & \text { S } \\
\hline
\end{array}
\)

A water vascular system is characteristically present in:

The number of correct statements regarding hemichordates from the given is:
I. A stomochord is present in the collar region
II. Circulation is of open type
III. Excretory organ is proboscis gland
IV. Development is indirect

Identify the incorrect statement regarding bony fishes :
I: They have four pairs of gills which are covered by an operculum on each side.
II: Due to the absence of air bladder, they have to swim constantly to avoid sinking.
III: Skin is covered with placoid scales.
IV: Mouth is mostly terminal.

Observe the following diagrams and tick the correct option with their respective classes :

In birds:
a. the characteristic feature is the presence of feathers
b. forelimbs are modified into wings.
c. flight is present in all members.
d. hind limbs do not have scales.