Fill in each blank with the correct word from the lesson.

1. This mode of _______ is called heterotrophic.
2. Unlike plants, _______ cannot make their own food — they must eat other organisms to obtain energy and nutrients.
3. In humans, _______ begins in the mouth where teeth break food into smaller pieces and saliva starts digesting starch.
4. Animals can be classified by what they eat: _______s eat only plants, carnivores eat only animals, omnivores eat both, and scavengers feed on dead animals.
5. They can be herbivores, _______s, omnivores, or scavengers.

Choose the best option for each question.

1. What is the correct order of organs in human digestion?
   a) Stomach → mouth → intestineb) Mouth → oesophagus → stomach → intestinec) Intestine → stomach → mouthd) Mouth → stomach → oesophagus
2. How does Amoeba digest its food?
   a) In a stomach organb) By using pseudopods to form a food vacuolec) Through photosynthesisd) By absorbing nutrients from dead matter
3. What is a ruminant?
   a) An animal that eats only meatb) An insect-eating plantc) An animal that re-chews regurgitated food to digest cellulosed) A plant that fixes nitrogen

Write T for True or F for False in the brackets.

1. Mouth → oesophagus → stomach → intestine is one of the key concepts in the lesson on Nutrition in Animals.
2. Stomach → mouth → intestine is the main topic of this lesson.
3. By using pseudopods to form a food vacuole is one of the key concepts in the lesson on Nutrition in Animals.
4. In a stomach organ is the main topic of this lesson.

1. In your own words, explain what Nutrition in Animals means.
2. List two things you learned from this lesson on Nutrition in Animals.