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Yogita Ingle 5 years, 5 months ago
-2(1-x)= -12/-2
-2 (1) - 2(-x)= 6
-2 + 2x = 6
2x = 6 +2
2x =8
x = 8/2 =4
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Yogita Ingle 5 years, 5 months ago
Pisces :
● This class compromises of fishes which are aquatic, free living and develop system level of organisation.
● They are bilaterally symmetrical and contain three germ layers - endoderm, mesoderm and ectoderm ( Triploblastic ).
● They are coelomate and locomotion occurs through streamlined body and forelimbs modified into fins.
● Respiration occurs through gills. Heart is 2 chambered containing 1 auricle and 1 ventricle.
● Exoskeleton is in form of rough scales. While inmer body is made up of cartilage and bones.
● They are cold - blooded and can't control their body temperature. The reproduction occurs sexually. Sexes are seperate and they lay eggs.
Eg = Catla ( Catla ), Electric Ray ( Torpede ), dog fish ( Scolidon ), Rohu ( Labeo ), Flying fish ( Exocoetus ).
Reptilia :
● This class compromises of organism which are aquaticnor terristial, free living and develop system level of organisation.
● They are bilaterally symmetrical and contain three germ layers - endoderm, mesoderm and ectoderm ( Triploblastic ).
● They are coelomate and locomotion occurs through pentadactyle. The heart is three chambered with 2 auricle and 1 ventricle.
● The exoskeleton us made up of scales where as endoskeleton of bones.
● Respiration takes place due to presence of lunges.
● They are cold blooded organism.
● They reproduce sexually where their eggs contain extra embryonic membranes.
Eg. =Magur ( Crocoldilus ), wall lizard ( Hemidactylus ), Trotoise ( Testudo ) and Garden lizard ( Chameleon ).
Posted by Priyank Sahu 5 years, 5 months ago
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Jagriti Roy?? 5 years, 5 months ago
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Param Tomar 5 years, 5 months ago
Gaurav Seth 5 years, 5 months ago
A n s w e r
The given length of the rectangle is 5.7cm and
The breadth of the rectangle is 3cm
Therefore, the area of the rectangle is length×breadth=5.7 × 3 = 17.1 cm
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Watch Out 5 years, 5 months ago
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