Invertebrate warriors

The video discusses invertebrates, focusing on their lack of a backbone and the presence of exoskeletons. It highlights ants as an example of insects with exoskeletons, explaining their structure and function. The video also covers the challenges faced by crustaceans like spider crabs, which must shed their exoskeletons to grow, leaving them vulnerable until a new shell forms.

Explain the difference between an exoskeleton and an internal skeleton.

What challenges do invertebrates face due to their exoskeletons?