161. Smooth muscles are likely to be found in

1. 1. muscles of legs

   
   
   

   2. muscles of arms

   
   
   

   3. stomach

   
   
   

   4. heart

   
   
   

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1. View Hint View Answer Discuss in Forum

   The smooth muscles fibres taper at both ends (fusiform) and do not show striations. Cell junctions hold them together and they are bundled together in a connective tissue sheath. The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.

   Correct Option: C

   The smooth muscles fibres taper at both ends (fusiform) and do not show striations. Cell junctions hold them together and they are bundled together in a connective tissue sheath. The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.

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162. Bacteria are (were) considered more as plants than animals because of the presence of

1. 1. small nucleus

   
   
   

   2. plasma membrane

   
   
   

   3. cell wall

   
   
   

   4. spore formation

   
   
   

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1. View Hint View Answer Discuss in Forum

   cell wall

   Correct Option: C

   cell wall

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163. Silver fern is

1. 1. Adiantum

   
   
   

   2. Cheilanthes

   
   
   

   3. Selaginella

   
   
   

   4. Equisetum

   
   
   

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1. View Hint View Answer Discuss in Forum

   Cheilanthes

   Correct Option: B

   Cheilanthes

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164. The largest invertebrate is

1. 1. octopus

   
   
   

   2. squid

   
   
   

   3. coral

   
   
   

   4. jelly fish

   
   
   

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1. View Hint View Answer Discuss in Forum

   squid

   Correct Option: B

   squid

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165. Ginger is a stem and not a root because

1. 1. it stores food

   
   
   

   2. it lacks chlorophyll

   
   
   

   3. it has nodes and internodes

   
   
   

   4. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   it has nodes and internodes

   Correct Option: C

   it has nodes and internodes

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