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BIO 182 Test 4 Terms

TermDefinition
Phylum Mollusca Pro V.S Con Soft body animals with Coelomate Invertebrates. Pro- Great food source (Humans eat them) Con- They are host to parasites They have- Visceral Mass Complete Digestive system Open Circulatory System Mantle Radula Nerve Cord Foot
Mantle Who has them and what is it? Produces the shell (outer shell) Snails have mantles If no shell is produce then the mantle become the lungs
Radula Who has them and what is it? Used for feeding.Scrapes algae into the mouth. Phylum Mollusca Tongue with teeth
Visceral Mass All internal organs are within
Polyplacophora Ploy- Many Placo- Plate Phora- Have Chiton have 8 plates on shell
Gastropoda Gastro- Stomach Poda- One foot Snails and Slugs
Difference between Snails and Slugs Snails have shell Snails use torsion (turns 180 degrees and poops on its head) Snails have one foot Slugs have no shells Slugs are poisonous (Not produce poison but eats animals with poison then uses that for protection when eaten or threatened)
Bivalvia Bi- Two Valvia- Valves Scallops Have two openings
Excurrent Siphon Out comes the water
Incurrent Siphon Water flows in for clean water
Cephalopoda Octopuses and Squids Closed circulatory System Advanced Brains
Phylum Annelida They have segmented bodies. They have rings like earthworms. They have- Complete digestive system Blood Vessels Closed circulatory system (Blood won't mix with body fluids) Nerve Cords (Advanced nervous system) Have Brains Nephridium Human kidney
Polychaeta Have many Setae=Chetae=Brisltes
Oligochaeta Have few Setae=Chetae=Bristles
Hirudinea Blood Sucking Parasites (Leeches) They have anit-Coagulate chemical called Hirudin
3 types of Annelida Class Polychaeta Oligochaeta Hirudinea
Phylum Arthropoda The most successful phylum on earth Arthro- Jointed Poda- Legs
Arthropoda Complete digestive system Exoskeloton
What is Exoskeloton Rigid External Skeloton
Exoskeloton Advantages 1. All muscles are attached 2.Prevenst water loss
Exoskeloton Draw backs 1. Exoskeloton are heavy 2. In order to grow they must shed. They grow in stages
Molted Is when the Arthropoda out grows its exoskeloton
Name the 3 parts of the arthropoda body 1. Head 2. Thorax 3. Abdomen
What is the head and the thorax combined called? Cephalathorax
Compound Eyes Composed of several units called ommatidia
Ocelli Simple eyes: can tell if it's dark or light
Phylum Arthropoda: Circulatory System One dorsal vessel: main vessel from head to abdomen
Phylum Arthropoda: Ventral Nerve Chord Nervous System: in front of the body
Phylum Arthropoda: malpighian tubules Liver
Phylum Arthropoda: Respiratory System Spiracles: air intake: holes on the side of the abdomen
Name 4 groups of Arthropoda 1. Chelicerata 2. Myriapods 3. Hexapods 4. Crustaceans
What animals fall in Chelicerata? Spiders, crabs, scorpians
What animals fall in Myriapods? Centipedes, and millipedes
What animals fall in Hexapods? 6 legs, insects, and relative
What animals fall in Crustaceans? Crabs, lobsters
Phylum Arthropoda: Subphylum: Chelicerata 1. Chelicera (fangs) connected to the poison gland 2. Feelers = Pedipalp 3. Four pairs of legs: 4.legs connected to the thorax
Phylum Arthropoda: Subphylum: Myriapoda: Centipede 1. Each segment has a pair of legs 2. 100 legs 3. Poisonous (carnivorous)
Phylum: Arthropoda: Subphylum: Myriapoda: Millepede 1. Each segment has 2 paris of legs 2. 1000 legs 3. Omnivorous (Eat anything and everything--AKA Kamury)
Phylum: Arthropoda: Subphylum: Hexapoda 1. Insects only have three sets of legs: Legs are attached to the thorax along with the wings. 2. Have one pair of atennas: used to detect anything and everything 3. Go through metamorphesis.
Phylum: Arthropoda: Subphylum: Hexapoda: Difference between complete and incomplete metamorphosis Complete: egg, larvae, pupa, adult Incomplete: egg, nymphs, they molt, into a adulthood (respiratory system: not developed correct)
Created by: TheKamster
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