The name of phylum is derived from certain features of animals. Select that how many of these are correct. A. Cnidaria-Cnidoblasts/cnidocytes
b. Latworms -Dorso-ventrally flattened body
c. Platyhelminthes-Circular cross section
d. Aschelminthes-Body surface is indistinctly
Marked out into segments or metameres
e. Echinodermata-Exoskeleton of calcareous ossicles.

Read the following statements about phylum Annelida. Identify the true and false statements and select the correct option after referring to the given table . A. Annelids are diploblastic , metamerically segmented , coelomate animals. B. Their neural system consists of paired ganglia connected by lateral nerves to a single ventral nerve cord . C. They process longitudinal and circular muscle fibres which help in locomotion . D Nephridia help them in osmoregulation and excretion.

Read the following statements about phylum Annelida. Identify the true and false statements and select the correct option after referring to the given table . A. Annelids are diploblastic , metamerically segmented , coelomate animals. B. Their neural system consists of paired ganglia connected by lateral nerves to a single ventral nerve cord . C. They process longitudinal and circular muscle fibres which help in locomotion . D Nephridia help them in osmoregulation and excretion.

Match the column-I with the column-II and find out the correct answer : {:("Column-I","Colum-II"),("(a) Spongocoel","(i) Arthropoda"),("(b) Dorso-ventrally flattened body"," (ii) Cnidaria "),("(c) Coelenteron cavity"," (iii) Porifera "),("(d) Chitinous exoskeleton"," (vi) Platyhelminthes "):}

Read the following (A-D) statements :- A. Connective tissue are most abundant and widely distributed in the body of complex animals B. They are named connective tissue because of their special function of linking and supporting other tissues // orgens of the body C. They range from soft connective tissue to specialised types, which include cartilage, bone, adipose and blood D. The cells of connective tissue secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix How many of the following statemants are correct :-

Read the following (A-D) statements :- A. Connective tissue are most abundant and widely distributed in the body of complex animals B. They are named connective tissue because of their special function of linking and supporting other tissues // organs of the body C. They range from soft connective tissue to specialised types, which include cartilage, bone, adipose and blood D. The cells of connective tissue secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix How many of the following statements are correct :-

Read the following match about phylum and it's one character : I. Annelida : First- time true coelom (schizocoelom) present in them. II. Arthropoda : Only metamerically segmented animals with haemocoel. III. Echinodermata : Have exoskeleton of calcareous ossicles and spines . IV. Hemichordata : Small worm-like marine animals with the notochord. How many from the above is/are correct

Read the following match about phylum and it's one character : I. Annelida : First- time true coelom (schizocoelom) present in them. II. Arthropoda : Only metamerically segmented animals with hemocoel. III. Echinodermata : Have exoskeleton of calcareous ossicles and spines . IV. Hemichordata : Small worm-like marine animals with the notochord. How many from the above is/ are the correct

In the following passage at certain points you are given a choice of three words one of which fits the meanning of the passage . Choose the best words . Mark the lettter , viz (a) , (b) or (c) Solve for 93 We know that the average depth of the sea is about two and a half miles, but in a few places it is very deep indeed-over six miles. The air presses upon our bodies with a weight of about fifteen pounds to the square inch at 82 (a) sea-water/(b) sea-level/(c) sea-bed We are used to this air pressure and 83. (a) do/ (b) did /(c) does not notice it. In the sea this 84(a) weight/ (b) volume/ (c) pressure is doubled at a depth of thirty-five feet, ant it 85. (a) expand (b) decreases (c) increases at this rate for greater depths. In the great deeps 86. (a) off (b) of (c) on the Philippine Islands, a man would be squeezed and utterly crushed by a pressure of 87. (a) severe (b) several (c) sheer tons per square inch. The pressure near the ocean floor is 88. (a) such (b) not (c) so such great that if you were to weigh a piece of wood and 89. (a) measure (b) follow (c) lower it to a great depth and then pull it 90. (a) up again it would no longer float, 91. (a) but (b) for (c) when it would have become waterlogged. All the tiny wood cells and cavities 92. (a) should (b) could (c) would have burst and become filled with water. We 93. (a) know (b) have known (c) are knowing that live at a depth of three miles and more and we wonder 94. (a) why (b) how (c) what this can be. The bodies of animals down 95. (a) here (b) where (c) there are almost entirely filled with water, and 96. (a) this (b) these (c) thus saves them from being crushed. However, many of 97. (a) such (b) those (c ) there animals contain some gases as well, for 98. (a) then (b) since (c) when they are captured in nets and drawn 99. (a) on (b) to (c) from the surface these gases expand so much that the animal 100. (a) immediately (b) eventually (c) actually explodes. Its body is torn to shreds as it 101.(a) bursts. (b) jumps (c) lands.