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Question

Choose the correct sequence of structural organisation in animals.
  1. Cutaneous

  2. Branchial

  3. Buccal

  4. Pulmonary


Solution

The correct option is B

Branchial


The cell level is the basic level of organisation for any multicellular organism.
Cells are organised into tissues to perform a particular function. (Example: epithelial, connective tissue)
Organs are structures that are composed of 2 or more different types of tissues, that have a specific function and usually have a recognisable shape. (Example: Lungs, heart)
An organ system consists of related organs with a common function. (Example: Digestive system which breaks down food and includes the mouth, salivary glands, oesophagus, stomach, small intestine, large intestine, liver, gall bladder and pancreas)
All the systems are structurally integrated and function cooperatively to constitute the total organism. (Example: Human body)
Organismal level– The organismal level is the highest level of organisation. It is the sum total of all structural levels working together.
 

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