BIOLOGICAL CLASSIFICATION
KINGDOM ANIMALS
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 Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 
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  are invertebrates 
 
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  are arthropods 
 
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  have jointed legs 
 
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  all of these 
 
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Detailed explanation-1: -Over 1.5 million living animal species have been described-of which around 1 million are insects-but it has been estimated there are over 7 million animal species in total. Animals range in length from 8.5 micrometres (0.00033 in) to 33.6 metres (110 ft).
Detailed explanation-2: -Animals are generally grouped into six types of animals. The system for animal classifications is called taxonomy.
Detailed explanation-3: -Large wild mammals are not especially common. Cows (1.4 billion) have the largest non-human large mammal population, and sheep, pigs, and goats ( 1 billion each) beat out all other competitors. The curious will be interested to know that there are 50% more cats globally than dogs (600, 000, 000 vs 400, 000, 000).