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PPSE FINAL
Terms Part 6
23
Other
Undergraduate 1
03/13/2011

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Term
Synapse
Definition
the gap between two nerve cells where there is an exchange of neurotransmitters.
Term
Systematics
Definition
the study of the classification of organisms and also their historical relationships.
Term
Tachinid
Definition
a member of a parasitoid family of Diptera.
Term
Tarsus
Definition
the last segment of an insect's leg (analogous to the foot).
Term
Taxon (plural=taxa)
Definition
a category of classification (kingdom, phylum, class, order, family, genus, species).
Term
Taxonomy
Definition
the science of naming organisms.
Term
Terminal velocity
Definition
in free fall, the point at which a falling body experiences no acceleration.
Term
Trachea (plural=tracheae)
Definition
a tube lined with integument that carries air within the insects' body.
Term
Tracheole
Definition
a very small trachea
Term
Treatment
Definition
within an experiment, conditions which are applied to a test subject.
Term
Tympanum (plural =tympana)
Definition
a type of mechanoreceptor that responds to sound waves, in the form of a membrane that is stretched like the top of a drum.
Term
Typhus
Definition
a disease caused by the spirochete Rickettsia prowazeckii and vectored by the human body louse.
Term
Univoltine
Definition
having one generation per year.
Term
Vector
Definition
an organism which has the potential to transfer an infectious agent into another organism.
Term
Vestigial
Definition
the remnant of what once was; the vestige of an appendage.
Term
Vitelline membrane
Definition
the inner membrane of an egg, which underlies the chorion.
Term
Voltinism
Definition
referring to the number of generations per year.
Term
Wadi
Definition
Arabic word for a swale that collects water after a rain.
Term
Wing pads
Definition
the developing wings of insect nymphs.PPSC 110-People, Pests and Plagues
Term
Worker
Definition
a female honeybee whose reproductive organs are undeveloped.
Term
Yellow fever
Definition
a viral disease vectored by mosquitoes in the genus Aedes.
Term
Yolk
Definition
the part of the egg which nourished the developing embryo, consisting primarily of lipids.
Term
Zygote
Definition
a cell resulting from the union of sperm and egg.
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