Invertebrado

The video tutorial explores invertebrates, animals without backbones, which make up most of Earth's animal species. It categorizes invertebrates into groups like mollusks, annelids, insects, crustaceans, echinoderms, arachnids, and protozoa, highlighting their unique characteristics. The tutorial contrasts invertebrates with vertebrates, animals with backbones, such as humans and elephants. It concludes by encouraging viewers to consider how invertebrates support their bodies.

What defines an invertebrate?

• An animal with an external skeleton

• An animal without a backbone

• An animal with a backbone

• An animal with a shell

Which group of invertebrates does an octopus belong to?

• Annelids

• Crustaceans

• Arachnids

• Mollusks

What is a characteristic feature of insects?

• They have an internal skeleton

• They have an external skeleton

• They have a backbone

• They have no skeleton

Which of the following is an example of an arachnid?

• Octopus

• Spider

• Lobster

• Butterfly

What distinguishes vertebrates from invertebrates?

• Lack of a digestive system

• Lack of a nervous system

• Presence of an external skeleton

• Presence of a backbone