Inquiry into Life
Inquiry into Life
16th Edition
ISBN: 9781260482638
Author: Mader, Sylvia
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 31, Problem S1.2BYB
Summary Introduction

To analyze:

What is the basis for classifying an organism as a member of kingdom Animalia?

Introduction:

The organisms on Earth were classified into five kingdoms - Prokaryote, Protista, Fungi, Plantae, and Animalia. These organisms were classified on the basis of structure, mode, the source of nutrition, and body design.

Expert Solution & Answer
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Explanation of Solution

Living organisms are classified into five kingdoms- Prokaryote, Protista, Fungi, Plantae, and Animalia. Animalia is also termed as Metazoa.

The general characteristics of Animalia kingdom are

- It should be a eukaryote

- It should be a heterotroph

- It should be multicellular having nucleus, mitochondria, Golgi complex, ribosomes, lysosomes, vacuoles, cytoskeleton.

- It should contain a muscular system, skeletal system, circulatory system, excretory system, and reproductive system, to perform various functions required for survival.

- It should be able to ingest food and digest it inside the cavity.

- It should be able to move independently.

- It should contain organs necessary for the gaseous exchange of gases like oxygen and carbon dioxide necessary for survival.

Conclusion

The kingdom Animalia is characterized by eukaryotic and heterotrophic organisms. It is multicellular and has cell walls. They depend on plants directly for their food. Food is ingested and digested in the food cavity. The organisms are capable of locomotion.

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Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License