Match the terms in column I with those in column II: Column I Column II (a) Compound epithelium (i) Alimentary canal (b) Compound eye (ii) Cockroach (c) Septal nephridia (iii) Skin (d) Open circulatory system (iv) Mosaic vision (e) Typhlosole (v) Earthworm (f) Osteocytes (vi) Phallomere (g) Genitalia (vii) Bone

(a) - (iii) The compound epithelium consists of many layers of cells stacked upon one another and is present in the skin. (b) - (iv) The compound eye is made up of several small vision units and are found in the insects and crustaceans. A type of vision that is hypothesized for the insect compound eye is called mosaic vision. (c) - (v) There are three types of nephridia present in annelids (Earthworm) namely, septal nephridia, segmental nephridia and pharyngeal nephridia. (d) - (ii) The open circulatory system is the type of circulatory system in which, the blood does not flow into the blood vessels but flows in open spaces called sinuses in the body cavity. The cockroach is an insect and has an open circulatory system as its heart is pulsatile. (e) - (i) Typhlosole is the part of digestive tract in earthworm. The typhlosole is the inner folding of intestine, which helps to increase the surface area for absorption. (f) - (vii) Osteocytes are the bone forming cells. Osteocytes also come from osteoblasts. Some osteoblasts turn into osteocytes while the new bone is formed. (g) - (vi) Phallomere are the male genitalia of insects. Column I Column II (a) Compound epithelium (iii) Skin (b) Compound eye (iv) Mosaic vision (c) Septal nephridia (v) Earthworm (d) Open circulatory system (ii) Cockroach (e) Typhlosole (i) Alimentary cannal (f) Osteocytes (vii) Bone (g) Genitalia (vi) Phallomere

E M B I B E

BIOLOGY TEXTBOOK FOR CLASS XI>Chapter 7 - Structural Organisation in Animals>EXERCISES>Q 10

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IMPORTANT

Earn 100

Identify the odd one out from the given series: Maxilla; mandible; labrum; antennae.

Important Questions on Structural Organisation in Animals

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11th Assam Board

IMPORTANT

BIOLOGY TEXTBOOK FOR CLASS XI>Chapter 7 - Structural Organisation in Animals>EXERCISES>Q 10

Mark the odd one in the given series:

Protonema; mesothorax; metathorax; coxa

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IMPORTANT

BIOLOGY TEXTBOOK FOR CLASS XI>Chapter 7 - Structural Organisation in Animals>EXERCISES>Q 11

Match the terms in column I with those in column II:

Column I	Column II
(a) Compound epithelium	(i) Alimentary canal
(b) Compound eye	(ii) Cockroach
(c) Septal nephridia	(iii) Skin
(d) Open circulatory system	(iv) Mosaic vision
(e) Typhlosole	(v) Earthworm
(f) Osteocytes	(vi) Phallomere
(g) Genitalia	(vii) Bone