Multiple choice questions XXXXXXIV — task. Science CBSE, Class 9.

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1. Tetanus disease is caused by

Bacterium
Virus
Mycoplasma
Fungus

2. What are holes in pores in Porifera used for?

Secretion of waste from the body
For the free movement of the body
Circulation of air throughout the body
Circulation of water throughout the body

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