Question

SSESSMENT
1. What are the different modes of nutrition?
2. Why plants are called as autotrophs?
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3. Photosynthesis is an important life process because
i) It gives food materials to all living organisms.
ii) It adds Oxygen to the atmosphere.
iii) It reduces the effect of Global warming
iv) It increases CO2 % in atmosphere
A) i, ii, and in
B) i, and ii C) i, iii and iv
D) i, ii, iii and iv​

Answer 1

Explanation:

There are two modes of nutrition:

Autotrophic – Plants exhibit autotrophic nutrition and are called as a primary producer. Plants synthesis their food by using light, carbon dioxide and water.

Heterotrophic – Both animals and human beings are called heterotrophs, as they depend on plants for their food.

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. ... We depend on plants for oxygen production and food.