Vertebrate Zool 417 3Rd Test Definitions

Front 1

Opisthoglyphus

Back 1

Venomous snakes with enlarged teeth in rear of jaw. Rear fanged snakes

Front 2

Annuli

Back 2

Rings extending around a structure.

Front 3

Proteroglyphous

Back 3

Venomous snakes with permanently erect fangs at front of mouth. (Cobras and mambas and relatives)

Front 4

Fossorial

Back 4

Specialized for burrowing. (Amphisbaenians)

Front 5

Zygodactyl

Back 5

Type of foot which the toes are arranged in two opposable groups. (Chameleon)

Front 6

Solenoglyphous

Back 6

Venomous snakes with long fangs in front of jaw that rotate when mouth opens. (Vipers)

Front 7

Autotomy

Back 7

Voluntary release of a portion of the body to escape a predator, as when a lizard loses its tail. Autotomized structures are regrown

Front 8

Oviparity

Back 8

Form of reproduction in which a mother deposits eggs that developed outside her body.

Front 9

Precocial

Back 9

Well developed and capable of locomotion soon after birth or hatching - like chickens and cows.

Front 10

Viviparity

Back 10

Form of reproduction in which the mother gives birth to a fully developed baby, as opposed to laying eggs.

Front 11

Parthenogenesis

Back 11

Reproduction by females without fertilization by males.

Front 12

Chorioallantoic placenta

Back 12

A placenta developed from the chorionic and allantoic extraembryonic membranes that replaces the choriovitelline placenta during the embryonic development of all eutherian mammals and some marsupials

Front 13

activity temperature range

Back 13

range of body temperatures that an ectothermal animal maintains when it is thermoregulating.

Front 14

Angiosperms

Back 14

Most recently evolved of vascular land plants characterized by seed enclosed in tissue derived from ovary

Hint 14

Important to success of Vertebrate evolution.

Front 15

Gigantothermy

Back 15

ability of an extremely large animal to maintain a constant and relatively high body temperature due to its low surface:volume ratio.

Front 16

Pterylae

Back 16

Tracts of follicles from which feathers grow.

Front 17

Apteria

Back 17

Regions of skin without feathers

Front 18

Down Feather

Back 18

entirely plumulaceous feathers in which the rachis is either shorter than the longest barb or entirely absent.

Front 19

Semiplume

Back 19

feathers intermediate in structure between contour feathers and down feathers

Front 20

rectrices

Back 20

tail feathers

Front 21

Remiges

Back 21

Wing feathers

Front 22

Furcula

Back 22

Avian wishbone formed by the fusion of the two clalvicles at their central ends

Front 23

Synsacrum

Back 23

fused vertebrae and ribs of birds that are fused with the pelvis

Front 24

pygostyle

Back 24

Fused caudal vertebrae of a bird that supports the tail feathers.

Front 25

tibiotarsus

Back 25

A bone formed by the fusion of the tibia and proximal tarsal elements in birds and some dinosaurs.

Front 26

Tarsometatarsus

Back 26

A bone formed by the distal tarsal elements with the metatarsals in birds and some dinosaurs.

Front 27

Cambered Airfoil

Back 27

an airfoil that has a curved upper surface and a flat lower surface.

Front 28

lift

Back 28

vertical force opposed to gravity

Front 29

Alula

Back 29

tuft of feathers on the first digit of a birds wing that reduces turbulence in airflow over wing.

Front 30

Angle of Attack

Back 30

verticle angle between a chord line of an airfoil and the direction of motion of the fluid through which the air foil is moving.

Front 31

Drag

Back 31

backward force opposed to forward motion

Front 32

Aspect ratio

Back 32

ratio of length of a wing to its width.

Front 33

Anisodactyl

Back 33

Arrangement of toes seen in perching birds, with three in front opposed to one behind.

Front 34

Zygodactyl

Back 34

Type of foot in which toes are arranged in two opposable groups

Front 35

Monogamy

Back 35

Mating system based on a pair bond between a single male and female.

Front 36

Social monogamy

Back 36

mating system in which male and female share parenting responsibilities, but mate with individuals outside the pair.

Front 37

Genetic monogamy

Back 37

social system in which a male and female share parental responsibilities and do not mate with individuals outside the pair.

Front 38

Polygamy

Back 38

mating system in which an individual has more than one mate in a breeding season.

Front 39

Polygyny

Back 39

mating system in which a male mates with more than one female

Front 40

Polyandry

Back 40

mating system in which a female mates with more than one male

Front 41

Promiscuity

Back 41

breeding system in which both males and females have more than one mate in a breeding season.

Front 42

Extra-pair Copulation

Back 42

mating with an individual other than the partner in a monogamous breeding system.

Front 43

Precocial

Back 43

Well developed and capable of locomotion soon after birth or hatching (like chickens and cows)

Front 44

Altricial

Back 44

Helpless at birth or hatching (like pigeons and cats)

Front 45

Zugdisposition

Back 45

preparation for migration by accumulating fat

Front 46

Zugstimmung

Back 46

condition in which a bird makes migratory flights

Front 47

Zugunruhe

Back 47

restlessness of caged birds that are prevented from migrating.