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ch 32.2
ch 32.2 dc
16
Biology
9th Grade
05/18/2014

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Term
gut
Definition
digestive tract
Term
integument
Definition
body (outer covering)
Term
larva
Definition
immature form of an organism that is structurally different from the adult
Term
open cirulatory
Definition
blood pumped by the heart through vessels into body cavity and is then returned to the vessels (anthropods)
Term
sexual reproduction
Definition
involves egg and sperm
Term
vertebrae
Definition
bony units of backbone
Term
hermaphrodite
Definition
single organism that produces both sperm and egg
Term
indirect development
Definition
development of organism through larva to adult. most invertebrates
Term
direct development
Definition
young animal looks similar to adult
Term
closed circulatory
Definition
blood pumped by heart and circulates through body in vessels that form a loop
Term
exoskeleton
Definition
rigid outer covering
Term
endoskeleton
Definition
internal skeleton of bone and cartilage
Term
symmetry
Definition
arrangement in which parts are on opposite sides of an axis are identical
Term
segmentation
Definition
series of repeating units
Term
gills
Definition
organs that consist of blood vessels surrounded by a membrane and are specialized for gas exchange
Term
spongin
Definition
flexible protein fibers
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