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WMAN 425 - Exam 1 questions well solved
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WMAN 425 - Exam 1 questions well solved
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WMAN 425 - Exam 1 questions wellsolved
Mammalogy - correct answer ✔✔The study of mammals
How many extent (still with us) mammals are there? - correct answer ✔✔6400 species
Why are modern mammals important to us today? - correct answer ✔✔-Domestication (food source for
humans)
-Recreation (hunting, riding a horse, etc.)
-Ecological significance
-Invasive species
-How species interact with one another
Medicine
-Zoonotic diseases
Mammals evolved from ________ - correct answer ✔✔Amniotes
Amniotes separate into three groups: - correct answer ✔✔Anapsids
Synapsids
Diapsids
Anapsids - correct answer ✔✔no temporal opening (turtles)
Synapsids - correct answer ✔✔1 temporal opening (mammals)
Diapsids - correct answer ✔✔2 temporal openings
, Pelycosauria - correct answer ✔✔early group of synapsids that were most primitive, mostly carnivores,
esp. fish eaters
Therapsids - correct answer ✔✔early group of synapsids that were most advanced herbivores and
carnivores which were smaller and more mammal-like
What were the two subgroups of Therapsids? - correct answer ✔✔Anomodontia (herbivores)
Theriodontia (carnivores)
Reptile Jaw Articulation - correct answer ✔✔Quadrate (skull) and Articular (jaw)
Mammals Jaw Articulation - correct answer ✔✔Squamosal (skull) and Dentary (jaw)
Ectothermy - correct answer ✔✔internal body temperature that is regulated by environmental sources
such as sunlight or heated rock surface
Homeothermy - correct answer ✔✔maintains a stable internal body temperature regardless of external
influence.
Endothermy - correct answer ✔✔physiological generation and regulation of relatively constant body
temperature by metabolic means
Size-Refugium Hypothesis - correct answer ✔✔surface to volume ratio is an inverse relationship. Early
synapsids and early therapsids were relatively large ectotherms. Because large size they had a low S/V
ratio - large thermal inertia
occipital condyles - correct answer ✔✔limits motion, precise motion of the head and control of it.
Protection for the spinal cord
Epiphyses (long bone) - correct answer ✔✔it is the joint that allows for movement and for growth. The
joint grows into 2 phases: juvenile and adult
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