Invertebrates Notes

8/7/2019 Invertebrates Notes

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INVERTEBRATESHarcourt Science

Unit B

Chapter 3

Mrs. Strand

6th grade

Lockwood Middle School


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Key Characteristics

What are two characteristics of

invertebrates?

No _______________________

Many have ________________________

View Invertebrates CD Intro


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Comparative Study of Invertebrates

Characteristic Sponges Cnidarians Worms Mollusks Echinoderms Arthropods

Symmetry

Reproduction

Digestion

Protection

Picture

Due before test


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Invertebrates

Terms

Vertebrates

Invertebrates Endoskeleton

Exoskeleton


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Two Types of Animals

All animals have the same basic needs F______

If you want to guess what the animal eats, look at its_______.

Animals eat food to gain energy, but

O______ Animals cant make _________ without oxygen.

W_______

All animals are made up of cells which are made up mostly of___________r.

P__________ Animals need protection from _______ and from

__________.

Some adaptations include


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Invertebrates (96% of animal kingdom)

May have _____skeletons

May have j______ May have _________

Invertebrates Environments

Theyre _______________!

Do WB pg 73


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Sponges, Cnidarians, & Worms

Terms

Sponge

Cnidarian Flatworm

Roundworm

Parasite

Segmented worm


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Sponges, Cnidarians,& Worms

Sponges

Filter ________ for food

Only _______ layers of cells

Some specialized cells to channel _______ orcarry _______ to other parts of the sponge

Skeleton is formed by ________ of spicules

Most live in ________ _______ __________ Most reproduce _____________, but not all

Color sponge picture


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sponge

Watch video segmentBiology Animals: sponges


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Cnidarians All have the ability to _________________.

All are _____________.

The mouth is connected directly to the ___________of the body.

Wastes leave through the ___________.

Dont have s___________, but do have t__________.

All live in water, most in sea water.

Have _____________ symmetry.

Color cnidarian picture

QuickTime and aTI

(

ncompressed) decompressorare needed to see this picture.

QuickTime and aTI

(


http://images.google.com/imgres?imgurl=http://www.vattenkikaren.gu.se/fakta/arter/cnidaria/overcnid/nasssys.gif&imgrefurl=http://www.vattenkikaren.gu.se/fakt

a/arter/cnidaria/overcnid/nass10e.html&h=535&w=387&sz=16&hl=en&start=20&tbnid=rYEezAAhEtSguM:&tbnh=132&tbnw=95&prev=/images%3

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QuickTime and aTI ( ncompressed) decompressor

are needed to see this picture.


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Cnidarian

Watch video segmentBiology Animals: Cnidarians & Echinoderms


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Worms

Have ____________ symmetry.

Flatworms

Flat bodies

Digestive system with __________ opening

Simple n_______ s_________ in the head (eye spots)

Planarians have mouth at the end of a long tube.

Have reproductive systems. Reproduce ___________

Can r_______________ parts.

QuickTime and a

TIFF (


http://cache.eb.com/eb/image?id=33746&rendTypeId=4

QuickTime and aTIFF (


http://creatures.ifas.ufl.edu/misc/land_planarians_photo1.htm


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Segmented Worms

Made up of connected ____________.

Bodies are more _________ than other worms.

Breath through their ________.

__________ goes right into the circulatory system.

Waste leaves the body through the anal pore.

Have two sets of __________.

Reproduce _____________.

Do WB pg 78Color worm picture

Watch video segment

Biology Animals:Worms


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worms


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worms


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worms


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Mollusks, Arthropods, &

Echinoderms Terms

Mollusk

Arthropod Arachnid

Insect

Echinoderm


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Mollusks, Arthropods, &

Echinoderms Mollusks More ________ than any animals studied before

Has a ________ body with no ________

mollus = soft

Most have a hard _________ for protection This shell grows within their body and is formed by the

____________

Mollusks have a muscular foot

Mollusks reproduce __________

Release sex cells into water, fertilized eggs mature to larvae,and then adults

Some are bi________ and some are uni_________

Examples are clams, oysters, slugs,snails, squid andoctapods

Color Land SnailWatch video segment


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snail


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snail


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Arthropods By far the l______________ phylum of animals

(1million+species) Have jointed exo____________

Muscular system allows for ________ movements

Skeleton does not ________ as animal grows

All have legs, a digestive system with ____ openings,a c__________ s________ and a b_________

Many have well-developed organs for s_____, s____and t_________

Reproduce _______________

Female lays f_____________ eggs Examples include: beetles, butterflies, spiders,

shrimp, centipedes and scorpions

Color spider pictures (2)

Watch video segment

Biology Animals:Arthropods


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Spider


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Helpful & Harmful Arthropods

Fewer that 1% of arthropods are harmful

Helpful Arthropods Harmful Arthropods

Color ant & lobster pictures

QuickTime andaTIFF(

ncompressed)decompressorareneededtoseethis picture.

https://reader009.{domain}/reader009/html5/0520/5b005b8402638/5b005b9163816.jpg


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ant


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lobstert


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Echinoderms

Have endo_____________

echino = spiny derm = skin

Live only in __________

Examples starfish, sand dollars sea urchins, and sea

cucumbers

No b_______

___________l symmetry for body

Mouth is at ___________ of underside of body with

powerful jaws

Tube ___________

Most reproduce ___________, but may also

___________ body parts

Do WB pg 83

Color starfish picture

QuickTime and aTI ( ncompressed) decompressor

are needed to see this picture.

http://kentsimmons.uwinnipeg.ca/16cm05/1116/16anim5.htm


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starfish


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Controlling Pests

This would be a great article to research

for extra credit :-) pg B94-B95

Do WB pg 84

Fill out graphic organizer

Documents

Invertebrates Notes