Admin Table of Contents
What are the 5 invertebrate groups?
Familiar examples of invertebrates include arthropods (insects, arachnids, crustaceans, and myriapods), mollusks (chitons, snail, bivalves, squids, and octopuses), annelid (earthworms and leeches), and cnidarians (hydras, jellyfishes, sea anemones, and corals).
What are the 6 major phyla of invertebrates?
6 Major Invertebrate Phyla: Porifera – sponges (por IF er ah) Cnidaria – sea anemones and jellyfish (ny DARE ee ah) Mollusca – snails, slugs, squids and octopuses (mall US kah) Annelida – segmented worms (repeated body segments) (a NELL i dah) Arthropoda – insects, shrimps, lobsters and crabs (are thro POE dah) …
How many main groups of invertebrates are there?
3 Familiar Groups of Invertebrates There are three main groups that may be very familiar to you: insects, arachnids and crustaceans.
What are the major invertebrates?
More than 90 percent of all living animal species are invertebrates. Worldwide in distribution, they include animals as diverse as sea stars, sea urchins, earthworms, sponges, jellyfish, lobsters, crabs, insects, spiders, snails, clams, and squid.
What are the eight large groups of invertebrates?
Phylum Porifera (Sponges)
What is an arthropod with six pairs of legs likely to be?
Class Arachnida (uh-rak-nid-uh), spiders, ticks, mites, scorpions and others. This is a diverse class which belongs to a subphylum of the Arthropoda known as the Chelicerata. Chelicerates have six pairs of appendages, the first two pairs being mouthparts and the following four pairs being legs.
What are the 8 groups of invertebrates?
The eight major phyla of invertebrates are Porifera, Cnidaria, Platyhelminthes, Annelida, Nematoda, Arthropoda, Echinodermata and Mollusca. There are also minor phyla. Most animals are invertebrates, and most of those are arthropods.
What are the five classes of invertebrates?
Porifera – sponges
What is the simplest group of invertebrates?
Nine groups are particularly important because they represent about 90% of all living invertebrates. From the simplest form to the most complex these nine groups are: Acellular animals (Protozoa) Sponges (Porifera) Jellyfish and their allies (Cnidaria) Flatworms (Platyhelminthes) Roundworms (Nematoda)
What are the five main groups of vertebrates?
– Fishes. The first fishes are thought to have emerged some 518 million years ago during the Cambrian Period of Earth’s history. – Amphibians. – Reptiles. – Birds. – Mammals.