Classification of Animals

Classification of Animals Bellringer 1. What is excretion? 2. What are the purposes of excretion in animals? 3. What are the types of excretion in animals? 4. Do fish pee? Why or why not?

Bellringer Answers 1. Excretion is the elimination of wastes from the body. 2. Maintain homeostasis, maintain blood pH and water content,

remove wastes adapted from Classification%20of%20Animals.ppt Animals With Backbones AMPHIBIAN FISH MAMMAL

BIRD REPTILE Animals With Backbones Animals with backbones are called vertebrates. Vertebrates include many different kinds of animals. They can be found just about everywhere in oceans, rivers, forests, mountains,

and deserts. Animals with backbones can be broken up into smaller groups by characteristics. They are: Fish Fish Characteristics Fish are vertebrates with an endoskeleton

They have a simple closed circulatory system Fish are bilaterally symmetrical Fish reproduce sexually, fertilize externally Breathing occurs through the gills adapted from Classification%20of%20Animals.ppt Fish Examples

Jawless Fish lampreys Cartilaginous Fish sharks Bony Fish bluegill, bass, salmon adapted from Classification%20of%20Animals.ppt Fish Distinguishing Characteristics They are the largest group of vertebrates.

They come in many sizes and shapes. Many fish are covered with scales that protects them. They have fins that help them to steer and balance in the water. Their body temperatures vary in the water. They breathe through gills. Fish and Excretory System

Videos True Facts About the Anglerfish: How the Urinary System Works: v=2_7Q1xQ-NWU adapted from Classification%20of%20Animals.ppt

Amphibians Amphibian Characteristics Vertebrate with an endoskeleton Closed circulatory system with 3 chambered heart Bilateral symmetry Sexual reproduction (in water, soft egg with

no shell) Moves using muscular system and four legs adapted from Classification%20of%20Animals.ppt Amphibian Characteristics Breathes using lungs and through skin (diffusion) Examples: frogs, toads, and salamanders

adapted from Classification%20of%20Animals.ppt Amphibian Distinguishing Characteristics Their body temperature varies with their surroundings (cold-blooded). Amphibians hatch from eggs and they can

live on land as an adult. Young amphibians breathe through gills like fish. Adult amphibians breathe air from lungs. Some have smooth moist skin. True Facts About the Frog v=ndQZBQJf034

adapted from Classification%20of%20Animals.ppt Reptiles Reptile Characteristics Vertebrate with an endoskeleton Closed circulatory system with 3

chambered heart Bilateral symmetry Sexual Reproduction (leathery amniotic eggs) Muscular System (four legs) adapted from Classification%20of%20Animals.ppt Reptiles Characteristics

Breathes through lungs (Respiratory System) Examples: lizards, snakes, alligators adapted from Classification%20of%20Animals.ppt Reptile Distiguishing Characteristics

Reptiles can move at various speeds. They lay their eggs on land. They have dry scaly skin and claws.

They can include animals as large as a crocodile. Their body temperature varies with their environment (cold blooded). They live in hot, dry deserts and in warm, wet tropical rain forests. True Facts About the Chameleon v=UR_byRbXxvs

adapted from Classification%20of%20Animals.ppt Birds Bird Characteristics Vertebrates with an endoskeleton Closed circulatory system with 4

chambered heart Bilateral symmetry Sexual reproductions (hard shelled eggs) Moves with muscular system and wings! Breathes with lungs adapted from Examples of Birds

Birds range in size from as small as your finger or as large as a human. adapted from Bird Characteristics There are about 9,000 types of birds. Birds are vertebrates that have wings and they are

covered with feathers. No other animal has this feature. The birds skeleton is very light in weight. Their bones are hollow. This helps them to fly. Mammals Mammal Characteristics

Vertebrates with endoskeleton Closed circulatory system with 4 chambered heart Bilateral symmetry Their young grows inside the mother. Moves using muscular system and four appendages Breathes through lungs adapted from Examples of Mammals They include a wide range of animals: ape, lions, kangaroos, bats, and etc. adapted from

Mammal Characteristics Humans are mammals but other mammals have more hair than we do. The hair keeps the animals warm. They feed milk to their young. Bellringer Should you pee on a jellyfish sting? Read the article on the desk and answer this

question. Use at least 2 pieces of evidence to support your answer. If peeing on the sting is not effective, what should you do instead? adapted from Classification%20of%20Animals.ppt Invertebrates

Invertebrate Classification What is an Invertebrate? Invertebrates are animals that do not have backbones. 97 % of the animal kingdom is made up of invertebrates. Some can be found in ponds, oceans, and other water environments.

Insects and some other invertebrates have exoskeletons. An Exoskeleton is a hard outer covering that protects an animals body and gives it support. There are six groups of invertebrates. They are:

Sponges Sponges Sponges have no skeleton or circulatory system Sponges have no symmetry Sponges can reproduce sexually or asexually Juvenile sponges move, adults are sessile

adapted from Classification%20of%20Animals.ppt Sponges v=65vEVmZIiNg adapted from

Classification%20of%20Animals.ppt Sponges Characteristics They look like plants but they are animals. Sponges stay fixed in one place. Their bodies are full of holes and their skeleton is made of spiky fibers. Water flows through the holes of their body which enables them to catch food.

Corals, Hydras, and Jellyfish Cnidarians Most cnidarians have no skeleton. Coral have an exoskeleton They have no circulatory system Radial symmetry Cnidarians reproduce sexually and

asexually adapted from Classification%20of%20Animals.ppt Cnidarians Video adapted from

Classification%20of%20Animals.ppt Characteristics Corals look like plants but they belong to the animal kingdom. They have soft tubelike bodies with a single opening surrounded by armlike parts called tentacles. They feed by catching tiny animals in their tentacles. Hydras have tentacles that catch their food.

They move from place to place. Hydras are much smaller animals. Jellyfish catch shrimp,fish, and other animals in its tentacles also. Bellringer Use page 977 to fill in the structures and functions of the digestive system on the paper (either you got it yesterday, or you

are getting it now) adapted from Classification%20of%20Animals.ppt Worms: Flatworms, Roundworms, and

Segmented worms Worm Characteristics Worms are tube-shaped invertebrates which allows them to be put into groups. They can be found in both land and water environments.

Flatworm Introduction ( monsters-inside-me/videos/meter-longtapeworm/) Note: This is from Monsters Inside Me adapted from Classification%20of%20Animals.ppt Flatworm Facts

No skeletal system, though they do have muscles No true circulatory system Breathe through diffusion Bilaterally symmetrical Reproduce sexually (hermaphrodites) adapted from Classification%20of%20Animals.ppt

Flatworms Most have a muscular system to help them move They have a head and a tail, and flattened bodies. A tapeworm is a flatworm that can live inside the body of animals and humans. It can cause you to become sick.

Examples Tapeworms Platyhelminthes adapted from Classification%20of%20Animals.ppt Roundworm Introduction v=Z9RJHkzQtXc Note: From Monsters Inside Me adapted from Classification%20of%20Animals.ppt Roundworm Facts No true skeletal system (hydro-static

system) No circulatory system Bilateral symmetry Reproduces sexually (some are hermaphroditic) adapted from Classification%20of%20Animals.ppt

Roundworm Facts They move using muscles and a hydrostatic skeleton Think pressurized fluid Breathes mainly through diffusion adapted from Classification%20of%20Animals.ppt

Examples Ascaris Worms Trichina adapted from Classification%20of%20Animals.ppt Roundworm

They have rounded bodies. They live in damp places and they can also live inside humans and other animals. They too can make people and other animals sick. Annelids Introduction v=XtpERpBDJtU

adapted from Classification%20of%20Animals.ppt Annelids Information No true skeletal system Closed circulatory system The blood flows through vessels only

Bilateral symmetry Reproduces sexually (hermaphroditic) Move by expanding and contracting body segments adapted from Classification%20of%20Animals.ppt Annelids breath through their skin (diffusion)

Examples: Leeches, Earthworms adapted from Classification%20of%20Animals.ppt Annelids The earthworm belongs to this group of worms. Their bodies are divided in segments, or

sections. They prefer burrowing through moist soil. This allows them to move easily and it keeps them from drying out. Bellringer Complete the questions in the handout over the human reproductive system. Use Chapter 34 in your book for help

adapted from Classification%20of%20Animals.ppt Mollusks Mollusk Introduction True Facts About the Land Snail

v=VTV23B5gBsQ adapted from Classification%20of%20Animals.ppt Mollusk Information No skeletal system. They have a shell and a hydro-static skeleton Open circulatory system

Bilateral symmetry Sexual (hermaphrodites) It moves using its muscular foot and its hydro-static skeleton adapted from Classification%20of%20Animals.ppt Examples of Mollusks

adapted from Classification%20of%20Animals.ppt Mollusk Characteristics A mollusk has a hard shell, a rough tongue, and a muscular foot. A snail is a mollusk with a single hard shell. A clam has two shells joined together by a hinge.

Squids and octopuses are also mollusk. Their hard shells are small, but they are inside their bodies. Echinoderms: Starfish and Sea Urchins Echinoderms Introduction Sea Pig: v=_y4DbZivHCY Sea Horse: v=UqYUTTqupOY adapted from Classification%20of%20Animals.ppt

Echinoderms Information Have an endoskeleton composed of calcerous ossicles Open circulatory system Radial symmetry Sexual Reproduction (external fertilization) Moves using a water vascular system They breath through simple gills in their feet. adapted from

Classification%20of%20Animals.ppt Characteristics It belongs to a group of invertebrates that have tiny tube feet and body parts arranged around a central area. A starfish has five arms and no head! The hard, spiny covering of the starfish gives the animal protection.

A sea urchin belongs to this same group. Its body is covered with spines. 5 Period: True Facts About the Octopus th

adapted from Classification%20of%20Animals.ppt Starfish Dissection: Bellringer Pick your group for dissection (3 4 people) Get one lab paper for your group from my desk Read the starfish information and complete

the pre-lab questions Listen for further instructions adapted from Classification%20of%20Animals.ppt Bellringer 1. What are your thoughts when you see this picture?

2. What do these two spiders have in common? 3. What is a good reason to have spiders in an ecosystem? adapted from Classification%20of%20Animals.ppt

Arthropods Arthropod Characteristics Arthropods are a group of invertebrates with jointed legs and hard exoskeleton that protect the arthropod. They possess an open circulatory system

adapted from Classification%20of%20Animals.ppt Arthropod Characteristics Arthropods have bilateral symmetry Arthropods with few exceptions have separate sexes and reproduce sexually Muscles attached to the inside of their exoskeleton act as a lever system (like in

vertebrates) adapted from Classification%20of%20Animals.ppt Arthropod Characteristics Aquatic arthropods possess gills through which they breathe Terrestrial arthropods possess tracheae (tiny

tubes) and book lungs adapted from Classification%20of%20Animals.ppt Arthropod Distinguishing Characteristics Jointed legs and hard exoskeleton that protect the arthropod.

They are the only invertebrates that can fly As it grows, it molts, or sheds its old exoskeleton. Then it grows a new exoskeleton that allows its body to continue to grow. The largest group of arthropods are insects. Arthropod Examples Insects: flies, bees, grasshoppers

Crustaceans: lobsters, crayfish, crabs Arachnids: spiders, ticks, mites, scorpions Centipedes and millipedes as well. adapted from Classification%20of%20Animals.ppt

Arthropods: Insects, Spiders, and Centipedes/Millipedes Crustaceans have two pairs of antennae, gills, and seven or more appendages for feeding, swimming, walking, respiration, and reproduction Arachnids have jointed legs (eight legs), jaws and fangs. Insects have bodies divided into three parts, and six legs.

True Facts About the Mantis: v=0aSCPmabRpM True Facts About the Mantis Shrimp: adapted from Classification%20of%20Animals.ppt

Todays Goals Get in the group you want to dissect the crayfish with on Friday (3 4 people) Get one handout for your group and sit together. Complete all parts of pre-lab using Crayfish placemats Crustacean section in book (page 735)

Last 3 minutes we will discuss the benchmark assessment Wed. and Thurs. adapted from Classification%20of%20Animals.ppt Summary Invertebrates do not have backbones. They include the smallest animals such as: spiders, mites, insects, and worms.

Vertebrates do have backbones. They include animals such as: Horses, birds, cats, dogs, fish, lizards, and snakes.

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