Name variuos steps of nutrition in animals.

List the steps of nutrition.

Fill in the blanks: The main steps of nutrition in humans are __________, __________, _________, __________, and __________.

Name two steps of breathing.

Name the four steps of oxidation in Krebs' cycle.(TCA)

Name the most important characteristics of plants and animals.

Name three types of body cavity found in animals.

Heterotrophic mode of nutrition is an important factor in causing great diversity in the ....... of animal structure.

Name four types of heterotrophic nutrition on the basis of nature of food.