Study Guide for Unit C:  Classifying Living Things
 
Millions of kinds of ______________________, or living things, exist on Earth.

Many scientists classify, or group, all organisms into just five large groups, called ______________________.

Kingdoms of Living Things                                Example
1.  ______________________          ______________________
2.   ______________________         ______________________
3.  ______________________          ______________________
4.   ______________________         ______________________
5.   ______________________         ______________________
 
Each bone that makes up the backbone is called a________________,

Animals are classified into two groups:
______________________         and     ______________________

Animals that have backbones are called ______________________,

______________________ are animals that do not have backbones.

Ninety-seven percent (a majority) of the animal kingdom is made up of ______________________,

An ______________________ is a hard outer covering that protects an animal’s body and gives it support.

Many vertebrates that live in water are classified as _____________,

The feathery parts on the side of a fish’s head are called _________,

An ______________________ is a vertebrate that usually lives in ___________ after hatching from an egg, but as an adult can live on ___________.

Most fish and amphibians have  ____________   ________________ that vary with the temperature of the environment.

A ______________________ is a vertebrate that has dry, scaly skin and lays eggs that a leathery shell.

All reptiles lay their eggs on ____________ and all breathe _______.

________________ are vertebrates that have wings and are covered with feathers. These vertebrates lay ____________________ eggs.

Vertebrates that feed milk to their young and have hair or fur are called ______________________.

______________________ are one group of invertebrates that look like plants. They are animals that have bodies full of holes and skeletons made of spiky fibers.

Animals in the invertebrate group with soft, tubelike bodies with a single opening surrounded by armlike parts called tentacles include ______________________, ______________________, ______________________, and ______________________,

______________________ are tube-shaped invertebrates.

______________________ and ______________________ belong to a group of invertebrates that have man tiny tube feet.

A ______________________ has a soft body, a hard shell, a rough tongue, and a muscular foot.

______________________ are a group of invertebrates with jointed legs and hard exoskeletons that protect the animals.

 ________________ is when an animal sheds its old exoskeleton.

Plants are classified into two groups: ______________________ and     ______________________.

______________________ do not reproduce with seeds.

______________________ do reproduce with seeds.

________________ are small nonseed plants that lack true roots, stems, and leaves.

________________ are nonseed plants that lack true roots, stems, and leaves.

________________ are spore-forming plants that have roots, stems, and leaves.

______________________ look like paintbrushes, reproduce by spores, and have underground stems.

Cone-bearing plants are called ______________________,

A ______________________ is a flowering plan that produces seeds that are in one piece. ________________ plants are an example.

A ______________________ is a flowering plant that produces seeds that have two sections. A ______________________ plant is an example.