Class 11 Biology - Chapter Animal Kingdom NCERT Solutions | Water vascular system is the characteris
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 ".$ex_no." , Question 8: water vascular system is the characteristic of whi....
Question 8
Water vascular system is the characteristic of which group of the following:
Water vascular system is the characteristic of which group of the following:
(a) Porifera (b) Ctenophora (c) Echinodermata (d) Chordata
Answer
Water vascular system is a characteristic feature of the phylum Echinodermata. It consists of an array of radiating channels, tube feet, and madreporite. The water vascular system helps in locomotion, food capturing, and respiration.
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:- How useful is the study of the nature of body cavity and coelom in the classification of animals?
- Q:- What are the modifications that are observed in birds that help them fly?
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:- Define a cardiac cycle and the cardiac output.
- Q:- Draw a standard ECG and explain the different segments in it.
- Q:- Try to collect all the currently accepted meanings for the word species. Discuss with your teacher the meaning of species in case of higher plants and animals on one hand and bacteria on the other hand.
- Q:- Which one of the plant growth regulators would you use if you are asked to:
(a) Induce rooting in a twig
(b) Quickly ripen a fruit
(c) Delay leaf senescence
(d) Induce growth in axillary buds
(e) Bolt a rosette plant
(f) Induce immediate stomatal closure in leaves. - Q:- Define vital capacity. What is its significance?
- Q:-
List the hormones secreted by the following:
(a) Hypothalamus
(b) Pituitary
(c) Thyroid
(d) Parathyroid
(e) Adrenal
(f) Pancreas
(g) Testis
(h) Ovary
(i) Thymus
(j) Atrium
(k) Kidney
(l) G-I Tract - Q:- Distinguish between:
(a) afferent neurons and efferent neurons
(b) impulse conduction in a myelinated nerve fibre and unmyelinated nerve fibre
(c) aqueous humor and vitreous humor
(d) blind spot and yellow spot
(f) cranial nerves and spinal nerves. - Q:- Which of the following statements are true? If false, correct them:
(a) Boron deficiency leads to stout axis.
(b) Every mineral element that is present in a cell is needed by the cell.
(c) Nitrogen as a nutrient element, is highly immobile in the plants.
(d) It is very easy to establish the essentiality of micronutrients because they are required only in trace quantities. - Q:- If a plant shows a symptom which could develop due to deficiency of more than one nutrient, how would you find out experimentally, the real deficient mineral element?
- Q:- Compare the following:
(a) Central neural system (CNS) and Peripheral neural system (PNS)
(b) Resting potential and action potential
(c) Choroid and retina
5 Comment(s) on this Question
Shalu
2019-11-09 07:05:49
I think answer is (a) porifera
Piya Negi
2019-09-26 13:08:07
Nice answer and I will easy understand thank u so much.
Alal uddin
2019-08-20 06:50:40
Thank you so much for given this questions answers
Ayush Tiwari
2018-09-14 09:43:09
nice answer
Adiptya Kumar Nath
2018-07-21 19:05:16
Best answer given
- All Chapters Of Class 11 Biology
- All Subjects Of Class 11