Invertebrate

The video tutorial explores the world of invertebrates, animals without a backbone or internal skeleton. It covers various groups such as mollusks, annelids, insects, crustaceans, arachnids, and protozoa, highlighting their unique characteristics and protective adaptations. The tutorial also compares invertebrates with vertebrates, emphasizing the diversity and prevalence of invertebrates in the animal kingdom. Viewers are encouraged to reflect on the different protective adaptations developed by invertebrates.

Describe the habitat of annelids.

What percentage of all animal species on earth are invertebrates?