NURSING ANM AND GNM

Detailed explanation-1: -Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy.

Detailed explanation-2: -No, although most autotrophs use sunlight as the energy source to produce food, other autotrophs produce their food without the aid of sunlight. The alternative food production process is called chemosynthesis and relies on the oxidation of inorganic compounds to produce food.

Detailed explanation-3: -The term autotroph was coined by the German botanist Albert Bernhard Frank in 1892. It stems from the ancient Greek word (trophḗ), meaning “nourishment” or “food". The first autotrophic organism developed about 2 billion years ago. Photoautotrophs evolved from heterotrophic bacteria by developing photosynthesis.