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30 Cards in this Set
- Front
- Back
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Which superphylum does Phylum Arthropoda belong to? Why? |
Superphylum Ecdysozoa; because these animals have exoskeletons. |
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What is ecdysis? |
The process of shedding or molting an exoskeleton |
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What is their exoskeleton made of? |
Chitin |
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Describe the body plan of arthropods. |
Bilaterally symmetrical; segmeted bodies; well-developed eyes; highly adapted; jointed appendages |
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Why are arthropods so wildly successful? |
They have jointed appendages |
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What are their joints made of? |
A thinner cuticle |
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What kind of environment do arthropods live in? |
Marine, freshwater, and terrestrial |
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What is special about terrestrial arthropods? |
They are the most abundant in variety and numbers |
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How many germ layers do arthropods have? What is special about their coelom? |
Three- they are triploblastic. They have a reduced coelom.
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How do arthropods eat? Describe their digestive mechanism. |
Some have mandibles, some have syringes. All have a complete, differentiated digestive tract. |
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Describe aquatic arthropods' respiratory mechanism. |
Gills or book lungs |
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What respiratory mechanism do terrestrial arthropods use? |
Arthropods do not have lungs; they have trachea. |
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How do arthropods respiratory mechanism work? What is a disadvantage? |
Muscle movement helps move oxygen directly to the cells and carbon dioxide away from the cells through tracheal tubes. This system limits their size. |
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What is hemocyanin? Where is it found? |
Hemocyanin is an oxygen-carrying protein found throughout the bodies of arthropods. |
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Describe arthropods' nitrogen waste removal mechanism. |
Arthropods have Malpighian tubules. |
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What is the difference between the nitrogen waste removal mechanism of terrestrial and water-dwelling arthropods? |
Water-dwelling: diffuse ammonia into water. Terrestrial: Ammonia is converted to uric acid. |
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Describe arthropods' nervous mechanism. |
Highly coordinated sense organs: -- compound eyes- better at seeing/sensing motion than humans -- can taste- with sensors on legs -- can hear- with antennae and tympanum -- can smell |
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What is a tympanum? |
A thinnly stretched piece of tissue and hearing structure |
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What do arthropods use for structural support? |
Exoskeleton |
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What is one huge advantage arthropods have? |
Jointed legs and wingss
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How do arthropods maintain internal stability? |
Arthropods produce nitrogen waste and decrease the amount of water lost. Also, their exoskeleton is waterproof. |
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How do arthropods reproduce? |
Generally, they have separate sexes. |
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What is unique about insects? |
80% of insects go through metamorphasi most insects have wings legs are only on the thorax only terrestrial 3-part bodies |
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Name the three parts of an insect's body. |
Head, thorax, abdomen |
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What subphylum or subphyla belong in Phylum Arthropoda? What is an example of each? |
1. Subphylum Chelicerata 2. Subphylum Myriapoda 3. Subphylum Hexapoda 4. Subphylum Crustacea |
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What class or classes belong in Subphylum Chelicerata? What is an example of each? |
1. Class Merostomata- horseshoe crabs 2. Class Arachnida- spiders, scorpions, ticks mites |
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Name one or more animals that belong in Subphylum Myriapoda. |
Centipedes and millipedes |
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What class or classes belong in Subphylum Hexapoda? |
Class Insecta |
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What order or orders belong in Class Insecta? What is an example of each? |
1. Order Coleoptera- beetles 2. Order Diptera- flies, mosquitoes 3. Order Hymenoptera- wasps, bees 4. Order Lepidoptera- butterflies, moths 5. Order Isoptera- termites 6. Order Orthoptera- grasshoppers, crickets |
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Name one or more animals that belong in Subphylum Crustacea. |
Crabs, lobsters, crayfish, shrimp |
