Question

Make comparative table how animal evolved

Answer 1

Answer:

Explanation:

Evolution of Invertebrates

Let's look at some key evolutionary characteristics of invertebrates. Most of the pattern of evolution is from simple to more complex. Examples of simple invertebrates include things like mollusks and nematodes. Mollusks have a soft body and protective shell, such as snails, sea slugs, oysters, and squids. Nematodes are simple worms - not earthworms. Nematodes are organisms like hookworms and roundworms that often cause illnesses in humans. Nematodes are actually the most widespread group of animals, meaning they live in many different places.

Arthropods are more complex invertebrates that have a segmented body, hard exoskeleton, and jointed appendages. This group is often called the 'insects' but contains more than just bugs. There are more than 1 million different identified species of arthropods ranging from horseshoe crabs to spiders to centipedes to butterflies.