Chapter 28
Animal Systems II

Chapter Resources

Evolution of the Nervous System
(from SlideShare)

Sponges hold clues to Brain Evolution

Visual Basics

Visual Systems in many animals

Endo- and Exoskeletons
(from the BBC)

The Amniote Egg




Structure & Function
Q: How do the body systems of animals allow them to collect information about their environments and respond appropriately?

Think about it - Imagine that you are at a favorite place - the beach or a basketball court. Think about how the sun and wind feel on your face, and how wonderful it feels to make the perfect layup. You gather information about your surroundings through your senses such as hearing and vision. The same is true for all animals, even though the organs that perform these functions vary greatly from one phylum to the next.

Key Questions Include:

How do animals respond to events around them?
What are the trends in nervous system evolution?
What are some types of sensory systems in animals?
What are the three types of skeletons?
How do muscles enable movement?
How do sexual and asexual reproduction in animals compare?
Where do embryos develop?
How are terrestrial vertebrates adapted to reproduction on land?
Why is the interdependence of body systems essential?
How do animals control body temperature?

SciLinks: The Senses

She's Just Like her Mother!

It was December 2001, and the employees of the shark exhibit at the Henry Doorly Zoo in Ohama discovered that one of their bonnethead sharks had given birth to a femal baby bonnethead. They were shocked. Why? Because there hadn't been a male shark in the tank for years. Now, there's a mystery to solve.

Click Here for the complete Chapter Mystery

Parthenogenesis in Turkeys
(Believe it or not, it's common!)