Question
Sketch, labell and classify: Shark
✓
Answer
Classification:
Kingdom: Animalia
Phylum: Chordata
Sub Phylum: Vertebrata
Class: Pisces
Example: Scoliodon (Shark)
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Sketch, label and classify the following organisms: Cockroach:
State and explain the various methods for preventing or retarding rancidity of food.
A and B are two pairs of glands that are present in the human endocrine system. The pair A is found only in females, whereas B is present only in males. Glands A make and secrete two hormones C and D, whereas glands B make and secrete only one hormone E. In addition to hormones, Glands A make gametes F, whereas glands B make gametes G.
- What are the glands A?
- What are the hormones C and D?
- What are the glands B? Name the hormone E.
- What are the gametes F and G?
- Which event in the life of males and females is associated with the secretion of the hormones C, D and E?
Bring out the contribution of India’s space missions.
Write the equations for the reactions of:
- Magnesium with dilute hydrochloric acid.
- Aluminium with dilute hydrochloric acid.
- Zinc with dilute hydrochloric acid.
- Iron with dilute hydrochloric acid.
Which device is used to produce electricity? Describe with a neat diagram.
(a) Electric motor
(b) Galvanometer
(c) Electric generator (DC)
(d) Voltmeter
(a) Electric motor
(b) Galvanometer
(c) Electric generator (DC)
(d) Voltmeter
Recognize the following food chain Describe the ecosystem to which it belongs.
Grasshopper → snake → Paddy field → Eagle → Frog.
Grasshopper → snake → Paddy field → Eagle → Frog.
Anodes need to be replaced from time to time during the electrolysis of alumina.
If a concave mirror has a focal length of 10cm, find the two positions where an object can be placed to give, in each case, an image twice the height of the object.
State whether the following reactions are exothermic or endothermic:
(i) $3 CaO \cdot Al _2 O _{3( s )}+6 H _2 O _{(1)} \rightarrow 3 CaO \cdot Al _2 O _3 \cdot 6 H _2 O _{( s )}+$ Heat
(ii) $2 CaSO _4 \cdot H _2 O +3 H _2 O \rightarrow 2 CaSO _4 \cdot 2 H _2 O +$ Heat
(iii) $KNO _{3( aq )}+ H _2 O _{(0)}+$ Heat $\rightarrow KNO _{3 \text { (aq) }}$
(iv) $NaOH _{( s )}+ H _2 O _{( l )} \rightarrow NaOH _{( aq )}+$ Heat
(v) Transformation of ice into water.
(vi) Water turns into ice.
(vii) Cooking of food.
(viii) Burning candle.
→(i) $3 CaO \cdot Al _2 O _{3( s )}+6 H _2 O _{(1)} \rightarrow 3 CaO \cdot Al _2 O _3 \cdot 6 H _2 O _{( s )}+$ Heat
(ii) $2 CaSO _4 \cdot H _2 O +3 H _2 O \rightarrow 2 CaSO _4 \cdot 2 H _2 O +$ Heat
(iii) $KNO _{3( aq )}+ H _2 O _{(0)}+$ Heat $\rightarrow KNO _{3 \text { (aq) }}$
(iv) $NaOH _{( s )}+ H _2 O _{( l )} \rightarrow NaOH _{( aq )}+$ Heat
(v) Transformation of ice into water.
(vi) Water turns into ice.
(vii) Cooking of food.
(viii) Burning candle.