How living things are Grouped Chapter 2

Classification Living things are grouped according to their similarities. The living things are grouped into five major groups called kingdoms: Animals Plants Bacteria Fungi Protists

Kingdoms

Smaller Groups The Kingdoms are then broken down into smaller groups until you reach an actual species Kingdom Phylum Class Order Family Genus Species

Levels of Classification

Plants Plants are broken down a little differently. The first level would be vascular or non vascular Then whether or not they make seeds Then whether they produce flowers or cones

Vertebrates Vertebrates are animals that have a backbone. They are classified into five phyla: Fish- scaly skin, must live in water Birds- have feathers but may or may not fly Amphibians- smooth skin; must begin life in water Reptiles- scaly skin; cold blooded Mammals- have fur; produce milk for their young

Invertebrates Invertebrates are animals without backbones. These animals generally have a hard shell outside their body called an exoskeleton. As they grow, they must replace the shell.

Classes of invertebrates Simple- includes earthworms and sponges Mollusks- includes squid, octopus, snails, clams, and oysters

Arthropods Arthropods are known for their jointed bodies and hard exoskeletons. Crustaceans are one example of arthropods. The arthropod phyla is divided into several subgroups. Let’s explore those groups now!

Crustaceans The crustacean group is a group of arthropods that have claws. If you like seafood, I bet you know some of these.

insects Insects are another group of arthropods. They are characterized by having six legs.

Arachnids Arachnids are another form of arthropods. They have eight legs.