Hey Josh H, Dennis L, & Traci W, You Better Be Good or I’ll squash you like a bug!!!
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Transcript of Hey Josh H, Dennis L, & Traci W, You Better Be Good or I’ll squash you like a bug!!!
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Hey Josh H, Dennis L, & Traci W, You Better Be Good or I’ll squash you like
a bug!!!
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Hey Krish and Mr. Sperm, You Better
Be Good or I’ll squash you like a
bug!!!
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Invertebrates are animals that have no backbone.
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There are more than 1 million kinds of arthropods on Earth.
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An arthropod is an invertebrate with an exoskeleton, a segmented
body, and jointed legs.
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crayfish
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• The body segmented, the segments usually grouped in two or three rather distinct regions.
• ex. 3 regions- Head, thorax, abdomen • (beetle)• ex. 2 regions- Cephalothorax (fused head & • thorax) and abdomen• Exoskeleton ( called a carapace in crayfish) made
of chitin.• Paired segmented appendages.
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An exoskeleton is a hard, outer covering made of chitin.
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Molting is to leave an exoskeleton and grow a new one.
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A crustacean is an arthropod that has a hard, exoskeleton, two pairs of
antennae, and a mouth for crunching and grinding.
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Crustaceans can ________ certain parts of their body.
A ___________ can re-grow its claws.
Most crustaceans live in ______ and get oxygen from the water through _________.
Gills are
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Digestion
• Tube from the mouth to the anus.
• Divided into sections: the foregut, the midgut and the hindgut.
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• Anterior ganglion or brain and paired nerve cords.
• Some have developed sensory ability.
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• Have an open circulatory system that carries food, but not oxygen throughout its body.
• Blood is often green since it does not carry oxygen.
• The heart is a simple tube running along the back.
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Respiratory System
• Respiration by means of gills, or book lungs and spiracles.
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Reproduction
• The sexes nearly always separate.
• Fertilization is usually internal in land species but external in aquatic species.
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Excretion
• Passes waste out of its anus from the hindgut.
• No nephridia.
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* Centipedes and millipedes are arthropods that have many legs.
* Have _______ pair of legs in each segment.* Are carnivores and eat _________.
* To capture its prey, a centipede puts _______ into the prey’s body with its_______.
* Centipedes are found in ___________ like under rocks and in the soil.
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* Centipedes and millipedes are arthropods that have many legs.
* Have ___ pairs of legs on each segment.
* Eat _________ and are shy animals. * When scared, it _________________ to protect itself.
* Are found in __________like under rocks and in the soil.
* Do not have ________.
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* All have __________ legs.
* Have a body divided into two parts:
•______________________________
•________________________________
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* Spiders usually eat __________, but some spiders eat small _______________ like hummingbirds.
* Many spiders make webs out of _________.
* Silk is _________________________________.
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* Spiders catch their prey in many different ways.
* Some spiders catch their prey in ____.
* Some spiders ________ from their prey and then ________________________.
* When spiders catch their prey, it _______ it and _________ it.
* Spiders breathe oxygen with __________.
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* Scorpions usually live in __________ areas.
* Most scorpions are __________________.
** Nocturnal means ____________________
* During the day, scorpions hide __________ ______________________________.
* When scorpions capture prey, they _______ ___________________________________.
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* Ticks and mites live on _______________.
* Some ticks and mites suck juices from ____________________.
* Other ticks and mites are very tiny and live on __________.
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* Many ticks suck the blood from _________.
* Ticks can give animals a ____________.
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*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.
* Insects have a body that is divided into ____ parts. * An insect’s body is divided into a ________, a _____________, and a ___________ area.
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* Insects have _____ legs connected to the chest part.* 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 ____________.
Longer back legs
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* Insects eat a lot, so they grow very fast. As they grow, insects may molt and grow new ___________, or they may change completely.
* A huge change in appearance is called ________.
* There are two kinds of metamorphosis:
______________ and ______________.
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* Most insects live alone. But, some insects are ___________ and cannot survive alone.* These insects live in ______________ or hives.
* A colony is _____________________________ _______________________________________
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* An amazing example of a colony is a __________.
* A beehive is ___________________________.
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* All insects must protect themselves.
* Bees and wasps have _______________ to protect themselves.
* Many other insects use ______________.
* Camouflage allows an insect to hide by ___ _______________________________.