Practice free Classification of Animal Kingdom (Zoology) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following is incorrect about Echinoderms?
Refer NCERT, Heading 4.2.9, page-54, para 1, Echinoderms are not Protostomous
How many of the following is the member of Echinodermata?
Sea hare, Sea cucumber, Sea lily, Sea urchin, Sea-pen, Sea fan, Sea anemone
Refer NCERT, Heading 4.2.9, page-54, para 1, Sea cucumber, Sea urchin and Sea lily
Which of the following is not a member of Echinodermata?
Refer NCERT, Heading 4.2.9, page-54, para1, Aplysia is a Mollusk.
Which of the following is true for Hemichordata?
Refer NCERT, Heading 4.2.10, page-54, para 1
What is incorrect regarding Periplaneta americana?
Blood [hemolymph has no RBC or pigment]. Oxygen is delivered by system of tubes.
NCERT Page 113
Which one of the following animals has two separate circulatory pathways?
The circulatory system in which two distinct and separate circulatory pathways for blood flow are involved, is called double circulatory system (also, double-loop circulatory system). It occurs in mammals and birds whale is a mammal so it shows above characteristic.
The terga sterna and pleura of cockroach body are joined by
NCERT, PAGE NO 111
STRUCTURAL ORGANISATION IN ANIMALS
7.4.1 Morphology
Which of the following is correctly states as it happens in the common cockroach?
In cockroach, mandibles are a pair of hard, strong, large, dark coloured triangular, structures which move in horizontal motion and crush food between them. Gizzard or proventriculus has an outer layer of thick circular muscles and thick inner cuticle forming six highly chitinous plate called teeth. The gizzard acts as the grinding chamber and helps in grinding the food particles.
Earthworms have no skeleton but during burrowing, the anterior end becomes trugid and acts as a hudraulic skeleton. It is due to
The body cavity (coelom) of earthworm is filled with an alkaline, colourless or milky coelomic fluid containing water, salts, some proteins and four types of coelomic corpuscles, i.e., phagocytes, mucocytes, circular nucleated cells and chloragogen cells. The coelomic fluid becomes turgid and acts as a hydraulic skeleton during burrowing.
Earthworm (Pheretima posthuma) living in burrows which are made in moist earth. It makes its burrow partly by boring with its points anterior end and partly by sucking and swallowing the earth. The body shows metameric segmentation. About the middle of each segment there is a ring of tiny curved bristles called setae or chaetae, formed of a horny nitrogenous organic substance known as chitin. The setae and musculature serve for locomotion as well as for anchoring body firmly in burrow.
The blood of earthworm is composed of a fluid plasma and colourless corpuscles, physiologically comparable to the leucocytes of vertebrates.
Which one of the following is the true description about an animal concerned?
The respiratory system of cockroach consists of tracheae, tracheoles and spiracles. The main tracheal trunks open to exterior on body surface through 10 pairs of segmentally arranged spiracles. Two pair of spiracles are thoracic (one between pro and mesothorax and other between meso and meta thorax). Eight pairs of spiracle are abdominal (one pair in each of the first eight abdominal segments).
Alimentary canal of earthworm is complete and functionally regioned into buccal chamber, pharynx, oesophagus, gizzard, stomach and intestine.
Frog's body has two main pans, ie, head and trunk. Absence of neck and tail provide convenience in both hopping and swimming.
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