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Biolab Ch 2

Classification of Chordata

QuestionAnswer
Notochords and pharyngeal gill slits are... chordate features, shared at some point in the life cycles of all chordates.
Myomeres are segmentally arranged bundles of muscles, seperated by thin sheets (myosepta) typically forming vertical bands of muscle on the bodies of fish and some protochordates
Brain is a.. concentration of central neural control located in the cranium or the anterior most region of the body
An endoskeleton is an.. internal skeleton, as opposed to an exoskeleton such as that of arthropods.
Fins are.. axial or appendicular appendages typically found in aquatic animals.
Lungs and swim bladder are .. internal gas-filled structures utilized in respiration and/or buoyancy control.
True limbs are .. paired appendages with muscles and skeletal support.
Pedicellate teeth are a form .. of dentition in which the biting surface o the tooth is on top of a slender pedicel or stalk. Amphibians have these.
Amniotic egg membrane is the .. innermost membrane of the embryo or fetus, suspending the developing embryo in a fluid filled environment.
In certain reptiles, a diapsid skull has.. two pairs of temporal fenetrae, opening in the skull allowing for the attachment and expansion of the jaw muscles.
Mammary glands are modified what that produce milk. sweat glands.
Hair are filaments of what growing from the dermis of mammals. keratin
Hemipenes are the paired what of male lepidosaurian reptiles. copulation organs.
Pre-orbital fenestra is a.. hole in the skull anterior to the openin gof th eye, found in archosaurs.
Feathers are .. epidermal out growths of some reptiles.
Created by: kccroy
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