Pg. 130 RTW: Do you remember the phylum Cnidaria? If so, what creatures

does it have?• Objective:

– I will be able to cite examples and explain the adaptations to the marine environment of the invertebrate phyla: Echinodermata.

• Agenda:– Foldable– Echinodermata need to send me quiz for approval

• Homework:– Fish Food Project

Monday, April 20th, 2015

Marine Science

To create the foldable 4 sheets of long paper Stack them so they form layers (see mine) Fold in the center and staple on the upper left

and upper right (see mine) Labeling: Title: Phylum Review Flaps:

1. Porifera 5. Mollusca2. Arthropoda 6. Chordata3. Echinodermata 7. Chordata4. Cnidaria

In each flap Note: 6. Chordata Class Reptilia / Class Aves

7. Chordata Class Mammalia / Class Actinopterygii

(osteichthyes) / Class Chondrichthyes

Top Half: Examples

Bottom Half: General CharacteristicsDiagramReproduction

Foldable Cnidarian Information 1. Examples: Jellyfish, corals, Man-o-

War, box jellies. Classes:

Class HydrozoaClass ScyphozoaClass AnthozoaClass Cubozoa

Reproduction: Sexual and asexual (budding)

Jellyfish Life Cycle

Foldable Cnidarian Information General characteristics:

Have stingers with nematocystsNo eyes, heart, lungs or nervous system (can

detect light changes)Radially symmetricalCarnivores

Diagram:Draw an example of each of the following:Hydrozoan, Scyphozoan, Cubozoan, Anthrozoan

Pg. 130 RTW: What is one characteristic of Cnidarians?

• Objective:– I will be able to cite examples and explain the

adaptations to the marine environment of the invertebrate phyla: Echinodermata.

• Agenda:– Echinodermata foldable & notes– Echinodermata group be ready to present tomorrow!– Porifera group send digital documents by today!

• Homework:– Fish Food Project

Tuesday, April 21st, 2015

Echinoderm Foldable

Examples: Class Asteroidea: sea stars

Subclass Ophiuroidea: brittle stars

Class Echinodea: sea urchin and sand dollars

Class Holothuroidea: sea cucumbers Class Crinoidea: feather stars, sea lilies

Echinoderm Foldable

General Characteristics: (Most) Have a water vascular system for

movement.Tube feet for attachment & locomotionOne-way digestion : separate mouth and

anusSkin covered in bumpsExternal fertilizationSome have the ability to regenerate

Echinoderm Foldable Diagrams: Draw an example of each of

the classes.

Reproduction: Sexual and fertilization happens externally.

Phylum Echinodermata

Include sea stars, sea urchins, sea cucumbers

Have radial symmetry based on 5 parts (similar parts surrounding central axis) Planktonic larvae has bilateral symmetry

Considered to have oral/aboral sides, NOT dorsal/ventral

Body StructureHave a water vascular system-

water filled canals Tube feet-muscular

extensions of these canals usually end in suckers used for attachment & locomotion

Ampullae-muscular sacs that sometimes fill tube feet with water

Madreporite-connects vascular system to outside on aboral (top) surface

Also has gonads & digestive system

No heart, brain or eyes

Complete digestive tract-stomach, digestive gland & anus

Endoskeleton-covered by a thin layer of tissue

Surface covered with bumps & spines giving them their name-”spiny skinned” (echinodermata)

Five classes 1)sea stars

Class: Asteroidea 2)brittle stars

Class: Asteroidea Subclass:Ophiuroidea

3)sea urchins & sand dollars

Class: Echinoidea

4)sea cucumbers

Class: Holothuroidea

http://www.youtube.com/watch?v=iSA09qg2BMY&feature=related&safety_mode=true&persist_safety_mode=1&safe=active

5)feather stars & sea lilies Crinoidea

Sea stars (starfish) 5 arms to 50 Most are

predatory- bivalves, snails,

barnacle, etc.

Sunflower Star http://www.youtube.com/watch?v=ALaMoS_vvNE&safety_mode=true&persist_safety_mode=1&safe=active

Cushion Star

Brittle Stars Arms very long & flexible-tube feet lack suckers Eat particles oforganic matter passed from feet to mouth More species than any other group of echinoderms

Basket Star (Brittle Star)

Brittle Stars

Sea Urchins & Sand Dollars Filter feed on drifting

plant/animals Deposit feeders that live on bottoms using tube feet lined with mucus to pick up particles

Sea Urchins

Sand Dollars

Sea Cucumbers Wormlike, lack spines Tube feet around mouth reach out and pick up organic material Escapes by ejecting digestivesystem distracting predators

Sea Cucumberhttp://video.nationalgeographic.com/video/kids/animals-pets-kids/invertebrates-kids/sea-cucumber-kids/

http://www.youtube.com/watch?v=aCxKFc3XtJs&safety_mode=true&persist_safety_mode=1&safe=active

Feather stars & Sea lilies 5 to 200 arms due to the branching Mucus helps in catching food Some attach to bottom, some crawl on surfaces in shallow to deep water

Sea Lilies (with Stalks)

Feather Stars (noStalks

http://www.youtube.com/watch?v=7V_px48dob8&safety_mode=true&persist_safety_mode=1&safe=active

Biology Sexes are separate in most

echinoderms External fertilization Spawning occurs at once to

increase survival

Echinoderms can use regeneration to replace missing parts

In some sea stars a severed arm can grow into a complete individual

http://www.youtube.com/watch?v=rE8l-KFQlhY&safety_mode=true&persist_safety_mode=1&safe=active

No RTW (HAPPY EARTH DAY!): Echinodermata group be ready to

present when the bell rings!• Objective:

– I will be able to cite examples and explain the adaptations to the marine environment of the invertebrate phyla: Echinodermata.

• Agenda:– Echinodermata group’s presentation!

• Homework:– Fish Food Project

Wednesday, April 22nd, 2015

Pg. 130 RTW: What is one thing you learned about echinodermata?

• Objective:– I will be able to cite examples and explain the

adaptations to the marine environment of the invertebrate phyla: Porifera.

• Agenda:– Porifera Foldable & Notes– Porifera/Annelida group be ready to present

tomorrow!• Homework:

– Fish Food Project

Thursday, April 23rd , 2015

Porifera Foldable Information Examples:

Variety of shapes, colors and sizesOldest known animal fossils

General Characteristics:SessileFilter feedersLack nervous system and organsWide variety of habitats: fresh, salt, cold or

warm water.

Porifera Foldable Diagram and Label:

Reproduction: Sexual and Asexual (including self fertilization)

phylum Porifera

Sponges are one of the oldest known animal fossils

Variety of colors & shapes Lack nervous system & organs

Feeding & Diet Sessile Sponges receive food & oxygen by water

passing through its pores The sponge can control the amount of water

by constricting or dilating its pores Bacteria is filtered from the water for food

A non-toxic yellow dye has been squirted around the base of a purple tube sponge in the Caribbean.

The dye is pumped out through the osculum at the top of the sponge.

Ostia- small pores where water/food enters the sponge

Osculum- Large hole where water & waste exits

Collar cells- traps, ingests & digests food Amebocytes- transport to cells Because the cells of the sponge are in direct

contact with the water gas exchange occurs across cell membrane as the water flow through the sponge. In O2 - Out CO2

FlagellaFlagella-beat water causing it to -beat water causing it to flow in & out of spongeflow in & out of spongeAmebocytesAmebocytes- helps in digestion- helps in digestion

Sexual Reproduction

Sponges may be male or female or have both organs

By releasing egg/sperm at different times it inhibits self fertilization

Adult sponges release sperm into water to be taken up by sponges for fertilization

SpawningSponge

1938- Key West Sponge Capital Of the World

New sponges may develop if a piece of the New sponges may develop if a piece of the sponge breaks off- sponge breaks off- Regeneration (Asexual)Regeneration (Asexual)

In the 1900’s thousands were employed to harvest the bath sponge for commercial use

Now synthetic sponges have replaced natural sponges

Sponges are found in a variety of habitatsFresh/salt waterCold/tropical waters

May be composed of hard calcium carbonate or silica

Or spongin, elastic framework of protein fibers

Marine Worms

Characteristics of Marine Worms Have nephridia (water regulating tubule)

as part of the excretory system, a heart, and sometimes jaws.

They show metamerism (division of body in repeating blocks or segments)

Special Attributes

More than 15,000 species! Most of the marine worms are in the

Class Polychaeta including:TubewormsBristlewormsSpongewormsFireworms

NO RTW: Porifera/Annelida group be ready to present when the bell rings!

• Objective:– I will be able to cite examples and explain the

adaptations to the marine environment of the invertebrate phyla: Porifera.

• Agenda:– Porifera/Annelida group’s presentation– Arthropoda group send digital documents by today!

• Homework:– Fish Food Project

Friday, April 24th , 2015