Animal Kingdom – Part II

Animal Kingdom – Animal Kingdom – Part IIPart II

MollusksMollusks GastropodGastropod Pod = feetPod = feet Gastro = stomachGastro = stomach

MollusksMollusks BivalveBivalve Bi = 2Bi = 2

MollusksMollusks CephalopodCephalopod Cephalo = headCephalo = head

MollusksMollusksMeaning Meaning of class of class namename

Name of Name of classclass

How they How they feedfeed

How they How they movemove

ExampleExample

““Stomach Stomach foot”foot”

““Two Two Shells”Shells”

““TentacleTentacles”s”

Meaning Meaning of class of class namename

Name of Name of classclass

How they How they feedfeed

How they How they movemove

ExampleExample

““Stomach Stomach foot”foot”

GastropodGastropod Scrape Scrape off food off food with with radularadula

Crawl Crawl with “foot”with “foot”

SnailsSnailsSlugsSlugsConchsConchs

““Two Two Shells”Shells”

BivalveBivalve Strain Strain food from food from water water (filter feet)(filter feet)

Clap shells Clap shells together to together to squirt out squirt out water (some water (some do not move)do not move)

ClamsClamsOystersOystersScallopsScallopsMusselsMussels

““TentacleTentacles”s”

CephalopodCephalopod Capture food Capture food with tentacles with tentacles that have that have suction cupssuction cups

Shoot water Shoot water out of out of opening to jet opening to jet themselves themselves backwardsbackwards

SquidSquidOctopusOctopusNautilusNautilus

ArthropodArthropod What does arthropod mean?What does arthropod mean?

Jointed FootJointed Foot

ArthropodsArthropods List 4 characteristics of arthropodsList 4 characteristics of arthropods

Jointed appendagesJointed appendages Exoskeleton (external skeleton)Exoskeleton (external skeleton) Segmented bodySegmented body Open circulatory systemOpen circulatory system

ArthropodArthropod Name some types of appendages Name some types of appendages

arthropods havearthropods have Claws/pincersClaws/pincers AntennaeAntennae LegsLegs WingsWings

How does the exoskeleton help with How does the exoskeleton help with survival?survival? Keeps moisture inside the animalKeeps moisture inside the animal Protects the animalProtects the animal

ArthropodArthropod Name the major classes of arthropodsName the major classes of arthropods

Arachnids (spiders, scorpions, ticks, and Arachnids (spiders, scorpions, ticks, and mites)mites)

Diplopods (millipedes)Diplopods (millipedes) Chilopods (centipedes)Chilopods (centipedes) InsectsInsects Crustaceans ( crabs, lobsters, crayfish and Crustaceans ( crabs, lobsters, crayfish and

shrimp)shrimp)

ArthropodsArthropods What is molting?What is molting?

Shedding the exoskeleton when it is too Shedding the exoskeleton when it is too small. small.

ArthropodsArthropods How do arthropods develop into adults?How do arthropods develop into adults?

MetamorphosisMetamorphosis Complete metamorphosis stages – egg, larva, Complete metamorphosis stages – egg, larva,

pupa, adultpupa, adult Incomplete metamorphosis stages- egg, nymph, Incomplete metamorphosis stages- egg, nymph,

adultadult

ArthropodsArthropodsArthropod Arthropod ClassClass

Number of Number of LegsLegs

Number of Number of Body Body SegmentsSegments

ArachnidArachnid 88 22

DiplopodDiplopod(millipede)(millipede)

Many two pair Many two pair per segmentper segment

ManyMany

ChilopodChilopod(centapede)(centapede)

Many one pair Many one pair per segmentper segment

ManyMany

InsectInsect 66 33

CrustaceanCrustacean 1010 1 or 21 or 2

InsectsInsects Did you know…Did you know…

Insects make up about ½ of all scientifically Insects make up about ½ of all scientifically described organisms (including animals)described organisms (including animals)

Approximately 12 insect species are Approximately 12 insect species are discovered each day, and experts think that discovered each day, and experts think that 10 million to 100 million species have yet to 10 million to 100 million species have yet to be discovered. be discovered.

InsectsInsects Insects are the strongest jumpers in the Insects are the strongest jumpers in the

world for their size and weight. A flea can world for their size and weight. A flea can jump 200 times it’s body length- jump 200 times it’s body length- equivalent to a man leaping 5 city blocks.equivalent to a man leaping 5 city blocks.

Some 450 species of plants prey on Some 450 species of plants prey on insects and other small creaturesinsects and other small creatures

An ant can pick up a stone 50 times its An ant can pick up a stone 50 times its own weightown weight

InsectsInsects Queen termites may live as long as 50 years, Queen termites may live as long as 50 years,

adult mayflies may live only a few hoursadult mayflies may live only a few hours A caterpillar had more than 4,000 distinct A caterpillar had more than 4,000 distinct

muscles, people have 800muscles, people have 800 An army ant colony on the march may contain An army ant colony on the march may contain

as many as 100,000 members and will kill any as many as 100,000 members and will kill any animal in it’s pathanimal in it’s path

A fairy fly, the smallest insect known to exist, A fairy fly, the smallest insect known to exist, would fit inside a period at the end of a would fit inside a period at the end of a sentence. sentence.

InsectsInsects

6 legs

1 pair of antennae

3 body parts

1-2 pairs of wings

Insects

InsectsInsects FEED – with a variety of mouthpartsFEED – with a variety of mouthparts

HerbivoresHerbivores CarnivoresCarnivores ScavengersScavengers DecomposersDecomposers ParasitesParasites

InsectsInsects HelpfulHelpful

HoneyHoney SilkSilk Plant pollinationPlant pollination DecompositionDecomposition Kill harmful insectsKill harmful insects

InsectsInsects DefensesDefenses

StingSting Release chemicalsRelease chemicals CamouflageCamouflage Mimic (mimicry)Mimic (mimicry)

EchinodermsEchinoderms Organization of body Organization of body

5 part radially symmetric5 part radially symmetric Internal skeletonInternal skeleton Water vascular system ( fluid filled tubes that Water vascular system ( fluid filled tubes that

carry food & oxygen to cells and wastes carry food & oxygen to cells and wastes away from cell)away from cell)

EchinodermsEchinoderms

Can regenerateCan regenerate FeedingFeeding

Many clamp onto bivalve mollusks and open Many clamp onto bivalve mollusks and open them using suction cups on their armsthem using suction cups on their arms