Class 11 Biology - Chapter Animal Kingdom NCERT Solutions | Segmentation in the body is first observ
Welcome to the NCERT Solutions for Class 11th Biology - Chapter Animal Kingdom. This page offers a step-by-step solution to the specific question from Excercise 1 , Question 13: segmentation in the body is first observed in whic....
Question 13
Segmentation in the body is first observed in which of the following:
Segmentation in the body is first observed in which of the following:
(a) Platyhelminthes (b) Aschelminthes (c) Annelida (d) Arthropoda
Answer
The body segmentation first appeared in the phylum, Annelida (annulus meaning little ring).
More Questions From Class 11 Biology - Chapter Animal Kingdom
- Q:- What is the difference between direct and indirect development?
- Q:- “All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
- Q:- What are the peculiar features that you find in parasitic platyhelminthes?
- Q:- How important is the presence of air bladder in Pisces?
- Q:- Distinguish between intracellular and extracellular digestion?
- Q:- What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
- Q:- Prepare a list of some animals that are found parasitic on human beings.
- Q:- Match the following:
(a) Operculum (i) Ctenophora
(b) Parapodia (ii) Mollusca
(c) Scales (iii) Porifera
(d) Comb plates (iv) Reptilia
(e) Radula (v) Annelida
(f) Hairs (vi) Cyclostomata and Chondrichthyes
(g) Choanocytes (vii) Mammalia
(h) Gill slits (viii) Osteichthyes - Q:- Water vascular system is the characteristic of which group of the following:
(a) Porifera (b) Ctenophora (c) Echinodermata (d) Chordata - Q:- How useful is the study of the nature of body cavity and coelom in the classification of animals?
Popular Questions of Class 11 Biology
- Q:- Why are living organisms classified?
- Q:- Discuss how classification systems have undergone several changes over a period of time?
- Q:- What is the basis of classification of algae?
- Q:- What is meant by modification of root? What type of modification of root is found in the (a) Banyan tree (b) Turnip (c) Mangrove trees
- Q:- State the location and function of different types of meristem.
- Q:- Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in the cockroach? (iv) How many segments are present in the abdomen of cockroach? (v) Where do you find malphigian tubules?
- Q:-
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell. - Q:- What are macromolecules? Give examples.
- Q:- What is the average cell cycle span for a mammalian cell?
- Q:- What are the factors affecting the rate of diffusion?
Recently Viewed Questions of Class 11 Biology
- Q:-
Name two cell-organelles that are double membrane bound. What are the characteristics of these two organelles? State their functions and draw labelled diagrams of both.
- Q:- Explain micturition.
- Q:- Explain why xylem transport is unidirectional and phloem transport bi-directional.
- Q:- Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or dicot stem? Give reasons.
- Q:- Explain why pure water has the maximum water potential.Explain why pure water has the maximum water potential.
- Q:- What would be expected to happen if:
(a) GA3 is applied to rice seedlings
(b) Dividing cells stop differentiating
(c) A rotten fruit gets mixed with unripe fruits
(d) You forget to add cytokinin to the culture medium. - Q:- Suppose there were plants that had a high concentration of Chlorophyll-b, but lacked chlorophyll-a, would it carry out photosynthesis? Then why do plants have chlorophyll-b and other accessory pigments?
- Q:- What are the characteristic features of Euglenoids?
- Q:- Organise a discussion in your class on the topic- Are viruses living or non-living?
- Q:- Give comparison between the following:
(a) C3 and C4 pathways
(b) Cyclic and non-cyclic photophosphorylation
(c) Anatomy of leaf in C3 and C4 plants
5 Comment(s) on this Question
Akshi
2019-10-11 22:13:20
Thanks. It helped me a lot
Arsh khan
2019-08-20 19:18:24
Very very helpful
Ghanashyambora
2018-09-21 14:39:46
Verrryyyyyyyyyyyyyyyyyyyy helpful
Ghanashyambora
2018-09-21 14:29:59
Verrryyyyyyyyyyyyyyyyyyyy helpful
zfg
2016-07-07 19:58:16
yep
- All Chapters Of Class 11 Biology
- All Subjects Of Class 11