Welcome to the Animal Kingdom

Study the picture below. Which Phylum has the greatest number of species? The second greatest? The third greatest?

Pie graph showing number of species in each phylum.

Answers:

Arthropoda
Mollusca
Chordata

Were you surprised?

Back to Basics

Before we begin, let’s go over the basic characteristics of animals. Use the presentation below to get started.

Review of the Body Processes

Use the presentation below to review the processes of the body.

You will need to know some helpful terminology for the remainder of this module. Much of it will be used to characterize and classify the Animal groups. Study the concepts and vocabulary words within the following notes: you will be expected to know them on upcoming assessments.

Animal Adaptations

In order for animals to survive, they had to develop adaptations. Study the picture below to review trends in animals over time. What are some adaptations that have allowed these different animals to survive?

3 Trends

Overall, the following are three trends:

specialized tissues and organs
bilateral symmetry with cephalization and segmentation
a digestive system that resides within a body cavity (called a coelom)

Challenge and Before You Go

Practice Time! Use the knowledge you learned from the lesson to complete the practice activities below.

Before You Go - You Need To Know

The following key points are from the explore section of the lesson. You must know the following information before moving to the next lesson. This is just a summary of the key points.

What are some characteristics that all animals share?
- Multicellular, eukaryotic, heterotroph, asexual, and/or sexual reproduction, lack cell walls.
What are some functions that all animals go through?
- Digestion, reproduction, movement, circulation, response, respiration, excretion
True or False.95% of all animal species are invertebrates.
- True!

IMAGES CREATED BY GAVS (FREEPIK)