Phylum Arthropoda Jointed Foot Importance 8 out of
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Phylum Arthropoda: Jointed Foot
Importance
-8 out of 10 animals are arthropods
-invaded every known ecosystem
-reproduce by the millions
-millions spent eliminating them
Taxonomy and Organization
Phylum Arthropoda Subphylum Trilobita Subphylum Uniramia Subphylum Chelicerata Subphylum Crustacea -Class Merostomata -Class Arachnida -Class Cirripedia -Class Malacostraca -Class Insecta -Class Diplopoda -Class Chilopoda
Arthropod Characteristics
1. Exoskeleton: made of chitin -Molting: shedding the exoskeleton
2. Segmentation: head, thorax, abdomen (tagmatization)
3. Paired and jointed appendages
4. Metamorphosis – changing of the body forms throughout life cycle
5. Well developed sensory organs -compound eyes -antennae -pheromones
6. Prolific reproduction: short life span + high reproduction = rapid evolution
7. Complex behaviors and social interactions
Subphylum Trilobita: The trilobites -first arthropods -dominant in the Paleozoic Era -all extinct -no known ancestry
Subphylum Chelicerata: 2 Classes
Class Merostomata: horseshoe crabs
Class Merostomata: horseshoe crabs -circular shaped exoskeleton -five pairs of walking legs -small pair of chelicera (pinchers) -telson: long, triangular spiked tail -blue blood, used to test commercial drug purity
Class Arachnida: scorpions, spiders, mites, and ticks
-cephalothorax: head and thorax combined
-chelicera: fangs found in arachnids
-pedipalp: specialized feeding appendages
-book lungs: specialized respiratory organs
-ticks: blood sucking parasites; cause Lyme’s disease and Rocky Mt. Spotted fever
-scorpions: the oldest known terrestrial arthropods
Specimens: -black widow spider -black and yellow argiope -brown recluse -wolf spider -rose hair tarantula -mexican white-kneed tarantula -wood tick -emperor scorpion -desert scorpion
Subphylum Crustacea: 2 Classes
Class Cirripedia: barnacles -adults are sessile; attach to whales, rocks, wood -protected by a calcareous shell -cirri: appendages used to gather food Specimens: giant barnacles, goose necked barnacle
Class Malacostraca: crabs, lobsters, crayfish, and shrimp -ten walking legs -mostly marine -sexes are separate -open circulatory system
Specimens: -Blue crab -hermit crab -emerald crab -marsh crab -reef lobster -crayfish -fiddler crab
Subphylum Uniramia: 3 Classes
Class Chilopoda -arthropods with segmented, elongated bodies -one pair of legs per body segment Ex. Centipedes
Class Diplopoda -two pairs of legs per body segments
Class Insecta: Entomology: the study of insects -75% of all animal biodiversity are insects -biologists estimate that only 1/50 th have been identified
Characteristics:
1. Three body segments
2. Three pairs of legs
3. One pair of antennae
4. Most have two pairs of wings – key to their success
5. Metamorphic life cycle
Negative Impact of Insects
1. Pests/tormentors: flies, gnats, mosquitoes
2. Disease vectors: mosquitoes, flies
3. Agricultural damage: crops and food
4. Property Damage: termites and ants
Positive Impacts of Insects
1. Plant Pollinators: mutualistic relationship. 65% of all plants are pollinated by insects
2. Ecological Importance: foundation of the food web
3. Economic Impact: honey, wax, dye, biodiversity
Insect Orders: most end in “ptera” wing
Order Lepidoptera: “scale wing” -insects with two pairs of wings covered by colorful scales -moths and butterflies Ex. Monarch butterfly, polyphemus moth, luna moth, underwing moth
Order Coleoptera: “sheath wing” -insects with a hardened pair of forewings -the beetles Ex. Colarado potato beetle, stag beetle, June beetle, Japanese beetle
Order Hymenoptera: “membrane wing” -insects with two pairs of transparent wings -most carry toxins in their stinger Ex. Honey bee, bald-faced hornet
Order Orthoptera: “straight wing” -insects with straight wings Ex. Differential grasshopper, lubber grasshopper, red-legged grasshoppers
Order Diptera – “two wings” -insects with one pair of transparent wings Ex. Horsefly
Order Odonata: “toothed” -predatory insects with large mandibles and two pairs of transparent wings Ex. Green darner
- Jointed foot phylum
- Jointed feet
- Characteristics of athropods
- Jointed foot phylum
- Annelids
- Arthropoda
- Arthropoden definition
- You put your left foot in
- Dichotomous key
- Arthropods circulatory system
- Daphnia
- Pereopods
- Subphylum uniramia
- Arthropods characteristics
- Class insecta characteristics
- Arthropoda video
- Phylum
- Reginald spider crab
- Diptera phylum
- Kingdom animalia phylum arthropoda
- Arthropoda common name
- Segmented and jointed body
- Figurative language in one thing by one direction
- How to solve a right triangle
- Importance of sponge
- Features of segmented worms
- Crustaceans characteristics
- Introduction of arthropods
- Arthropoda
- Helmites
- Ciri insecta
- Arthropoda taxonomia
- Klasifikasi arthropoda
- Mollusca
- Jointed appendages definition
- Arthropoda
- Joint-footed animals
- Grasshopper internal anatomy
- Ciri arthropoda
- Arthropoda simetria
- Arthropoda nematoda
- Nbilateral
- Arthropoda
- Arthropoda
- Arthropoda
- Subphylum mandibulata
- Arthropoda arachnida
- Filum arthropoda
- Panarthropoda
- Shellfish with a jointed exterior
- Joint footed animals are called
- Types of joints in concrete pavement
- 320
- Joint legged animals
- Jointed feet
- Segmented bodies and jointed legs
- _____ means "jointed feet."
- Jointed legs
- Have segmented bodies