I. Fill In the blanks

1. Green plants _________ their food themselves by the process of photosynthesis. They are ________.

2. ___________ and ____________are the essential requirements for photosynthesis.

3. Oxygen released in photosynthesis is _______ by other living organisms for their___________.

4. Digestion of carbohydrates, like________, begins in the ___________.

5. The digested food is absorbed in the ____________ in the _________ intestine.

6. The ________________ substances are transported to different parts of the ________.

7. Animals like cow, swallow their leafy food and store it in the ________. Later, the food returns to the _________ and the animal chews it peacefully.

8. Amoeba ingests its food with the help of its false feet or ________. The food is digested in the food

________.

9. The __________ temperature of the day occurs generally in the afternoon while the ______

temperature occurs in the early morning.

10. The times of________ and __________ also change during the year.​