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What is the difference between complete and incomplete metamorphosis?
- complete: egg, larva, pupa, adult
- incomplete: egg, nymph, adult
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What do spiders use to breathe?
book lungs
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How do spiders bite and what is injected into their prey before they eat them?
- chelicerae
- digestive juices
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What class do spiders belong to?
arachnida
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What are setae?
hair like appendages that sense air currents
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What form of insect respiration has a direct path to the external environment?
tracheal tubes
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How do insects communicate?
- pheromones
- bioluminescence
- waggle dance
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What type of circulatory system do arthropods have?
open
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How do crustaceans breathe?
gills
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What is a chela?
claw like structure on the chelapeds
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What are uropods used for in crustaceans?
- swimming backwards
- copulation
- protecting young
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What is the cephalothorax and how do crustaceans shed their exoskeleton?
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What are three types of ways crustaceans eat?
- scavenger: eat already dead organisms
- suspension: eat things that are floating in the water
- predator: hunt and eat worms, larvae, other crustaceans
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What is it called when you place objects into groups based on similarities and how do you name them using two words?
- classification
- binomial nomenclature
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How do you form the scientific name of an organism?
genus and species
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What is the difference between autotrophic and heterotrophic?
- autotrophic: make their own food
- heterotrophic: has to find their own food
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What is the order of the taxonomic divisions?
kingdom, phylum, class, order, family, genus, species
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What is the difference between artificial selection and natural selection?
- artificial: humans breed organisms to produce specific traits
- natural: animals with specific traits survive to pass on because they are best suited for their environment
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What is the difference between camouflage and mimicry?
- camouflage: blending in with their surroundings
- mimicry: resembling another species
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What are examples of homologous and analogous structures?
- homologous: bird wings and human forearms
- analogous: bird wings and insect wings
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What structure no longer has function in an organism and an example?
vestigial structure, wisdom teeth
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What type of symmetry and what type of circulation do annelids have?
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What do you call the segments that separate the worms body?
septa
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How do earthworms move?
- setae
- longitudinal muscles
- circular muscles
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What do you call the head of a worm?
prostrium
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How can earthworms help humans?
- aeration of soil
- bait for fishing
- medicinal reasons
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What class do earthworms belong to? What class do leeches belong to?
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What do earthworms do in order to breathe when the ground is too saturated?
sticks mouth and anus out of the ground
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What do leeches use to suck blood from their hosts and what substance is released from them?
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What type of symmetry do echinoderms have?
pentamerous
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What do you call tube feet?
podia
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What do echinoderm arms extend out of and how much must be cut off to form a new starfish?
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What are pedicellariae?
pincers
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What are located at the end of each arm and used for vision in starfish?
ocelli
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What is unique about the cardiac stomach?
extends out of the mouth to digest material
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What does it mean to be a bivalve?
having two shells
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What opens and closes the shell and what is the oldest part of the shell?
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What does the foot do in bivalves?
it is used for locomotion
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What is a rasping, tongue like organ that helps grind food?
radula
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What are two uses humans have for mollusks?
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What are the three layers of a bivalve shell?
- nacreous
- prismatic
- periostacum
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What is the specialized cells called that allow octopi to change color?
chromatophores
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