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Living Environment

Our environment is great 8 Questions.

 
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Bharathihn
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1

Which pair of compounds can be classified as inorganic?

  • nucleic acids and minerals.
  • proteins and water.
  • nucleic acids and proteins.
  • water and salts.

2

Which are the four most abundant elements in living cells?

  • carbon, oxygen, hydrogen, nitrogen.
  • carbon, oxygen, nitrogen, sulfur.
  • carbon, oxygen, sulfur, phosphorus
  • carbon, sulfur, hydrogen, magnesium.

3

Which is an organic compound found in most cells?

  • sodium chloride.
  • glucose.
  • water.
  • oxygen gas.

4

Which structure includes all of the others?

  • nucleolus.
  • genes.
  • chromosomes.
  • the nucleus.

5

Which of these is usually present only in animal cells?

  • vacuole.
  • centriole.
  • nucleus.
  • cytoplasm.

6

What is one function of the human endoskeleton?

  • transmit impulses.
  • produce blood cells.
  • produce lactic acid.
  • store nitrogenous wastes.

7

How does an organelle differs from an organ?

  • An organelle cannot be stained.
  • An organelle is a substructure of a cell.
  • An organelle contains one specific type of tissue.
  • An organelle is larger than an organ.

8

Which formula represents an organic compound?

  • NaCl.
  • C12H22O11.
  • NH3.
  • Mg(OH)2.

 

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