animal responses. meet the standards living things are classified by shared characteristics. various...
TRANSCRIPT
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Animal Responses
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Meet the Standards• Living things are classified by shared
characteristics.
• Various body structures and functions change as an organism goes through its life cycle.
• Patterns of development vary among animals (metamorphosis)
• An organism’s body plan and environment determine the way that the organism carries out its life processes.
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Meet the Standards• Survival depends on the ability to sense and
respond to the outside environment.
• The methods of obtaining nutrients vary among organisms.
• In all environments, organisms with similar needs may compete with one another for resources.
• The environment may contain dangerous substances that are harmful to an organism.
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Meet the Standards• Herbivores obtain energy from plants.
Carnivores obtain energy from animals. Omnivores …
• Food webs identify feeding relationships among producers, consumers and decomposers in an ecosystem.
• Matter is transferred form one organisms to another and between an organism and its environment. (H2O, CO2, O2, N2)
• Animal Systems (organs, tissues) - comparative
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Meet the Standards• The environment may be altered through the
activities of an organism. Some species may replace others over time, resulting in long term gradual changes.
• Human activities have resulted in major pollution (impact on) of air, water and soil. Pollution has cumulative ecological effects such as acid rain, global warming or ozone depletion.
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Meet the Critters
Mealworms – Tenebrio molitor
MealwormKingdom: Animalia are multicellular eukaryotesPhylum: Arthropoda have jointed limbs and
exoskeletonsClass: Insecta 3 body segments, 3 pair of jointed legsOrder: Coleoptera beetles (sheathed wing)Family: Tenebrionidae darkling beetlesGenus: Tenebrio means ‘lover of darkness’Species: molitor means hardly, with difficulty
I’m not a worm, I am a larvae (grub).
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Meet the Critters
Mealworms – Tenebrio molitor
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Meet the Critters
Brine Shrimp
Kingdom: Animalia are multicellular eukaryotesPhylum: Arthropoda have jointed limbs and exoskeleton. subPhylum: CrustaceaClass: Branchiopoda have gills on/near their appendagesOrder: Anostraca are the fairy shrimpFamily: ArtemiidaeGenus: ArtemiaSpecies: franciscana
We’ve been marketed as “sea monkeys”
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Meet the Critters
Brine ShrimpI’ve been marketed as “sea monkeys”
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Meet the Critters
CrayfishI’m the “poor man’s lobster”.
Kingdom: Animalia are multicellular eukaryotesPhylum: Arthropoda have jointed limbs and exoskeleton. subPhylum: CrustaceaClass: Malacostraca have soft shellsOrder: Decapoda are “ten footed”Family: Astacoidea live in fresh water and have feather like gillsGenus: Astacidae or CambaridaeSpecies:
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Meet the Critters
Male crayfish
Female crayfish
Sexing Crayfish
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Meet the Critters
Male crayfish – arrow points to gonopod legs used to transfer sperm to female
Female crayfish – arrow points to seminal receptacle between legs
Sexing Crayfish
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Critter Comparison
• Physiology (body parts)
• Life Cycle
• Behavior
• Food Chains and Webs
• Impact on surroundings
Students should compare the critters on:
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Resources
• View the “Animal Responses: Information, Tips and Hints” document.
• Read “Crazy About Crayfish” for inquiry science.