Presentation on theme: "Animals: Arthropods and Echinoderms"— Presentation transcript:
1Animals: Arthropods and Echinoderms Objectives:Students will identify animals classified as arthropods and echinoderms.Students will be able to explain the characteristics of arthropods and echinoderms.Students will identify the differences between arthropods and echinoderms.
2There are ____ kinds of invertebrates. six Invertebrates are animals that have no backbone.There are ____ kinds of invertebrates.sixYou have already learned about four kinds.WormsSpongesMollusksCnidarians
4Arthropods and Echinoderms Chapter TwoArthropods and Echinoderms
5There are three characteristics that all arthropods have. There are more than 1 million kinds of arthropods on Earth.There are three characteristics that all arthropods have.1. exoskeleton2. segmented body3. jointed legs
6An exoskeleton is a hard, outer covering. All arthropods have anAn exoskeleton is a hard, outer covering.Made of Chiton
7Some arthropods grow too big for their exoskeletons. molt.These arthropods willMolting is to leave an exoskeleton and grow a new one.
8More Characteristics of Arthropods Arthropods have a heart topump blood through an open circulatory system.Arthropods reproduce sexually.Pass all waste out of the anus...no nephridia
9There are four main kinds of arthropods. So basically…Arthropodsare invertebrates with an exoskeleton, a segmented body, and jointed legs.There are four main kinds of arthropods.1. Crustaceans3. Centipedes &Millipedes2. Arachnids4. Insects
10Four Kinds of Arthropods CrustaceanInsectsCentipedes &MillipedesArachnidscrabgrasshopperlobsterbutterflybarnaclebeetlespidercentipedebeeshrimpscorpionmillipedemothtickantmite
11Crustacean Crustaceans are ... Crabs Lobsters Barnacles Shrimp A crustacean is an arthropod that has a hard, exoskeleton, two pairs of antennae, and a mouth for crunching and grinding.Crustaceans are ...CrabsLobstersBarnaclesShrimp
12special respiratory organs that help some CrustaceansCrustaceans can ________ certain parts of their body.re-growstone crabA ___________ can re-grow its claws.Most crustaceans live in ______ and get oxygen from the water through _________.watergillsGills arespecial respiratory organs that help someanimals breathe and get oxygen from the water.
13Centipedes and Millipedes * Centipedes and millipedes are arthropods that have many legs.Centipedes* Have _______ pair of legs in each segment.one* Are carnivores and eat _________.other animals* To capture its prey, a centipede puts _______ into the prey’s body with its_______.poisonclaws* Centipedes are found in ___________ like under rocks and in the soil.wet places
14Centipedes and Millipedes * Centipedes and millipedes are arthropods that have many legs.Millipedestwo* Have ___ pairs of legs on each segment.* Eat _________ and are shy animals.plantsrolls up into a tiny ball* When scared, it _________________ to protect itself.claws* Do not have ________.* Are found in __________like under rocks and in the soil.wet places
15(Spiders, Scorpions, Ticks, and Mites) Arachnids(Spiders, Scorpions, Ticks, and Mites)eight* All have __________ legs.* Have a body divided into two parts:______________________________________________________________a head and chest part- cephalothoraxa stomach part- abdomen
16a thin, strong thread made in the stomachs of spiders * Spiders usually eat __________, but some spiders eat small _______________ like hummingbirds.bugsvertebratessilk* Many spiders make webs out of _________.* Silk is _________________________________.a thin, strong thread made in the stomachs of spiders
17jump out and catch the prey Spiders* Spiders catch their prey in many different ways.webs* Some spiders catch their prey in ____.hide* Some spiders ________ from their prey and then ________________________.jump out and catch the prey* When spiders catch their prey, it _______ it and _________ it.bitespoisons* Spiders breathe oxygen with __________.lungs
19Draw and label: eyes, cephalothorax, Abdomen, Spinnerets
20Camel SpiderSome common Camel Spider Myths: 1. Camel spiders can move at speeds over 30 MPH, screaming while they run. 2. Camel spiders can be as large as a frisbee. 3. Camel spiders venom is an anesthetic that numbs their prey. 4. Camel spiders can jump three feet high. 5. Camel spiders get their name because they eat the stomachs of camels. 6. They eat or gnaw on people while they sleep. Due to the numbing effect of their venom, the victim is unaware until they awake. 7. Send us your myths for inclusion here...THE FACTSCamel spiders top speed - 10 mph. Which is very fast for a such a small creature..Size: Up to 8 inches, although many of our readers report larger.Called camel spiders because they live in the desert.Camel Spiders are solpugids.. Along with spiders, they are members of the class Arachnida. For more camel spider pictures..
21to be active during the night Scorpions* Scorpions usually live in __________ areas.dry desertnocturnal* Most scorpions are __________________.** Nocturnal means ____________________to be active during the night* During the day, scorpions hide __________ ______________________________.under logsand rocks, or in holes in the ground* When scorpions capture prey, they _______ ___________________________________.hold itwith their large claws and sting it with their tails
22other plants and animals Ticks and Mites* Ticks and mites live on _______________.other plants and animals* Some ticks and mites suck juices from ____________________.the stems and leaves of plants* Other ticks and mites are very tiny and live on __________.bugs
23Ticks and Mites Are Harmful * Many ticks suck the blood from _________.larger animals* Ticks can give animals ____________.lyme disease
24Insects 300 million three head chest-thorax stomach-abdomen *There are more kinds of insects than there are all other animal species all together.* There could be _______________ times as many insects as humans on Earth.300 million* Insects have a body that is divided into ____ parts.three* An insect’s body is divided into a ________, a _____________, and a ___________ area.headchest-thoraxstomach-abdomen
25Insect Structure six jumping Oxygen * Insects have _____ legs connected to the chest part.six* Some insects’ legs are all the same size. Some insects have one pair of legs larger than the other two pairs.* A grasshopper has one pair of legs larger than the other two pairs. These larger legs are used for ____________.jumping*Insect blood carries nutrients, but not___________, therefore it is GREEN!OxygenLonger back legs
26Insect Growth and Development * Insects eat a lot, so they grow very fast. As they grow, insects may molt and grow new ___________, or they may change completely.exoskeletonsmetamorphosis* A huge change in appearance is called ________.* There are two kinds of metamorphosis:______________ and ______________.completeincomplete
27Complete Metamorphosis * In complete metamorphosis, insects like butterflies and moths have _______ stages of development.four* The first stage makes an ________.egg* During the second stage, the egg hatches and a _________ comes out.larva* A caterpillar is the larva of an insect that will become a butterfly or a moth.
28Complete Metamorphosis * During the third stage, a ___________ is made.pupa* A pupa is sometimes wrapped in a _____________ or in a _______________.chrysaliscocoon* A cocoon is the pupa of a _____________. A cocoon is made of ________.mothsilk* A chrysalis is the pupa of a ___________.butterfly* In the last stage, the insect is finally an adult.
29From Caterpillar to Butterfly LarvaPupaChrysalisEmerging butterflyMonarch butterfly
30Incomplete Metamorphosis * Incomplete metamorphosis happens in grasshoppers, termites, and dragonflies.* In incomplete metamorphosis, young animals that look like the ___________ hatch from eggs.adult* As the young animals grow, they keep _________, shedding their exoskeletons, and getting larger.molting
31Metamorphosis Comparison CompleteIncomplete* Occurs in four stages* Young insect lookslike the adultegglarvapupaadult* Insect grows biggerand bigger* Insect's appearancechanges completely* As the insect grows,it sheds its exoskeleton* Young insect looksnothing like the adult* Occurs in butterfliesand moths
32a group of insects living together. Insect Behavior* Most insects live alone. But, some insects are ___________ and cannot survive alone.social* These insects live in ______________ or hives.colonies* A colony is _____________________________ _______________________________________a group of insects living together.The insects do different jobs and are very organized.
33a very organized colony of bees Insect Behavior* An amazing example of a colony is a __________.beehive* A beehive is ___________________________.a very organized colony of bees
34blending in with their environment Insects' Defense* All insects must protect themselves.* Bees and wasps have _______________ to protect themselves.stingers* Many other insects use ______________.camouflage* Camouflage allows an insect to hide by ___ _______________________________.blending in with their environment
352-3: Echinoderms starfish sea lilies feather stars sea urchins * Echinoderms are __________, ________, __________, ________, ____________, and _____________.starfishsea liliesfeather starssea urchinssea cucumberssand dollars* Echinoderm means _______________. All echinoderms have spiny skin.spiny skin
36Echinoderms five There are ______ characteristics of echinoderms. All echinoderms have:Spiny skinAn internal skeletonA five part bodyA water vascular systemTube feet
37Characteristics of Echinoderms * All echinoderms have __________. Some of them have small hair-like spines, like the starfish.spiny skin* Some echinoderms have long spines, like the sea urchin.
38Characteristics of Echinoderms * The internal skeleton of an echinoderm is made of _______________________.bony plates that are bumpy or spiny.* An echinoderm’s water vascular system is _________________________________.a system of tubes that carry food and oxygen and remove wastes* The water vascular system also helps an echinoderm _____.move
39Characteristics of Echinoderms tube feet* Echinoderms have __________.tube feet* An echinoderm’s tube feet are used for _________________________________.moving and for getting food
40Starfish sea stars five or more tube feet * Starfish are also called ___________.sea stars* Starfish have __________ arms connected to a central body.five or more* On the bottom of the arms are hundreds of ___________ that look like suction cups.tube feet
41Starfish * A starfish is able to re-grow its arms. * A starfish uses its tube feet to move and to open its food.
42Sea Urchins spines poisonous * Sea urchins have longer and sharper ________ that they use to protect themselves.spines* Some sea urchins have ________ spines.poisonous
43Sea Urchins sea plants tube feet * Sea urchins have a mouth hidden under its body.* A sea urchin uses its five teeth to eat ____________.sea plants* A sea urchin is not very active. Sometimes, it does move slowly using its __________. When not moving it uses its feet to stick to the ocean floor.tube feet