Lesson 1 - Mrs. Parsiola's Homepage

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Life Science

____ Period

Name:

Date:

Study Guide for Ch. 11 Animal Diversity Test

Vocabulary:

1.

Asymmetry: body organization that cannot be divided into mirror images

2.

Bilateral symmetry: body organization that can be divided into two mirror images

3.

Radial symmetry: body organization that can be divided into multiple mirror images anywhere through the central axis

4.

Invertebrate: animal that does not have a backbone

5.

Vertebrate: animal that does have a backbone

6.

Appendage: structure that extends from the central part of the body, like an arm or leg

7.

Exoskeleton: thick, hard outer covering that protects and supports animals’ bodies

8.

Notochord: flexible, rod-shaped structure that supports the body of a developing chordate

Lesson 1: What defines an Animal?

1.

What series of characteristics do all animals share? a.

Animals are multicellular and eukaryotic. b.

They have specialized cells for different functions (ex. digestion, reproduction, vision, or taste). c.

Animals have collagen (protein that surrounds cells to help keep their shape). d.

They get energy by eating other organisms. e.

Animals digest their food.

Unit 7 Astronomy Ch.22-25 - Space (pp. 636-767)

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Life Science

____ Period

Name:

Date:

2.

How can animals be classified? a.

They can be classified into two large categories: Invertebrates or Vertebrates. b.

They can be classified by their symmetry: asymmetrical, radial, or bilateral. c.

They can be classified by their molecular classification (DNA, RNA).

3.

Animal Classification Concept Map

Organisms in

Kingdom Animalia can be classified into nine (9) major phyla according to these characteristics backbone vertebrates invertebrates

DNA bilateral symmetry radial asymmetry

Unit 7 Astronomy Ch.22-25 - Space (pp. 636-767)

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Life Science

____ Period

PORIFERA

(sponges)

Name:

Date:

CNIDARIA

(jellyfish, sea anemone)

PLATYHELMINTHES

(flatworms)

NEMATODA

(roundworms)

ANNELIDA

(segmented worms-earthworm, leech)

MOLLUSCA

(snail, slug, clam, squid, octopus)

ECHINODERMATA

(starfish, sea cucumber, sea urchin)

Unit 7 Astronomy Ch.22-25 - Space (pp. 636-767)

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ARTHROPODA

(insect, shrimp, crab, spider)

CHORDATA

(fish, amphibians, reptiles, birds, mammals)

Life Science

____ Period

Name:

Date:

Lesson 2: Invertebrate Phyla

1.

What are the characteristics of invertebrates? a.

no internal support structure b.

smaller than and slower than vertebrates c.

diverse body plans and physical characteristics

2.

Invertebrates include 95-99 percent of all animal species. Arthropods contain the most animals of the 8 invertebrate phyla. The largest order of Arthropods is the insects .

3.

Know the characteristics and symmetry for the 8 invertebrate phyla:

Lesson 3: Phylum Chordata

1.

What are the characteristics of Chordates? (Some only appear during embryonic stages). a.

has notochord (flexible, rod-shaped structure that supports the body) b.

a nerve cord (central nervous system) c.

a tail d.

pharyngeal pouches

Unit 7 Astronomy Ch.22-25 - Space (pp. 636-767)

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Life Science

____ Period

Name:

Date:

2.

What are the characteristics of a vertebrate? a.

all have a backbone that surrounds a spinal cord (spinal column or spine) b.

all have a digestive system with two openings, circulatory system to move blood, and nervous system including brain

3.

Most chordates are vertebrates with the exception of two invertebrates: tunicates and lancelets (which have a notochord).

4.

The classes of vertebrates differ based on presence or absence of characteristics such as gills, fins, scales, legs, wings, fur, and eggs.

5.

Know the characteristics and examples of the classes of vertebrates:

FISH

Characteristic : two chambered heart; gills to absorb oxygen gas from water; paired fins

Jawless fish Cartilaginous fish Boney fish

AMPHIBIA

Characteristic : three chambered heart; live part of life in water (gills) and part on land (lungs); eggs without hard protective covers; smooth moist skin

Frog Salamander Toad

Unit 7 Astronomy Ch.22-25 - Space (pp. 636-767)

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Life Science

____ Period

Name:

Date:

REPTILIA

Characteristic : three chambered heart; lungs; eggs with leathery shell; scales and waterproof skin

Lizard Snake Turtle Alligator

AVES

Characteristic : four chambered heart; hollow bones; eggs with hard shell; feathers; beak, no teeth, gizzard to grind food

MAMMALIA

Characteristic : four chambered heart; hair or fur; live young (except platypus – eggs); mammary glands that produce milk

INCLUDES HUMANS

Unit 7 Astronomy Ch.22-25 - Space (pp. 636-767)

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