Question

Archaea is present in deep sea where light cannot reach it. What mode of nutrition it has
A. photo autotrophs
B. chemo heterotroph
C. photo heterotroph
D. chemo autotrophs

Answer 1

Answer:

the correct option is d) chemo autotrophs

the chemo autotrophs do not use sunlight and they oxidize many inorganic substances like nitrites and nitrates and uses the energy evolved for their ATP production  

Explanation:

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Answer 2

The mode of nutrition of archaea is D. chemo autotrophs

• Archea synthesizes their food, so, they are autotrophs. In the condition of absence of light, autotrophic activity can be performed using chemical compounds present in the environment. Hence, archaea are chemoautotrophs.
• Photoautotrophs require light for the production of food.
• Chemoheterotrophs and photoheterotrophs are dependent on other sources for the production of energy.