PLACTHCA. ANATOMY OF MAMMALSI Mamaals have two unlique extemal charsictinics which distinguinh them from afl other vertebrates: (1) all mansmals have hair at some time during their development, and (2) all-female mammals possess mammary elands with exiemal epewings for nourishing the young. Moat mammals have separate urozenital and anal openings. In males, the urogerital struct ures consist of the penis and two sachike swellings called the scrotum, containing the teitice: The ricrotum lies. ventral to the anus which is locased at the base of the tail. In females of seme species, the urinary and genital openings are also separased. In the females, the urethral opening is the mont ventral. 1. Several voucher specimens are on display. Iry to identify both male and female and2. What other characteristics can you seo that idenify the specimens as mamunals? begin{tabular}{|l|l|l|l|l|} hline Characteristics & Name of species & Ouher vertebrates sharing & is the chatacteristic a hline & feature & general or distinguishing hline & & & & hline & & & & hline end{tabular} 3. Of what importance is hair to mammals?4. Famine ont of the mamnal skelesons ce diuplew and jdenaify the boees as fur as yous cars. Use your knowledge to lobel the diagram Nelo5. Mamimale have an uppor ana lower lal and a mall maks of thinas in the ugper comate known an. usine this mentbrane ast not bliruing. Why? 6. Ohserve the skull of the earaivore and hertivore divglaped. Ibcinify the coroedid grocess. What. ane the mujor differmers hetween the two sufl types in relation io Indaiag.

1. PLACTHCA. ANATOMY OF MAMMALSI Mamaals have two unlique extemal charsictinics which
distinguinh them from afl other vertebrates: (1) all mansmals have hair at some time during their
development, and (2) all-female mammals possess mammary elands with exiemal epewings for
nourishing the young. Moat mammals have separate urozenital and anal openings. In males, the
urogerital struct ures consist of the penis and two sachike swellings called the scrotum, containing
the teitice: The ricrotum lies. ventral to the anus which is locased at the base of the tail. In females
of seme species, the urinary and genital openings are also separased. In the females, the urethral
opening is the mont ventral. 1. Several voucher specimens are on display. Iry to identify both male
and female and2. What other characteristics can you seo that idenify the specimens as
mamunals? begin{tabular}{|l|l|l|l|l|} hline Characteristics & Name of species & Ouher vertebrates
sharing & is the chatacteristic a hline & feature & general or distinguishing hline & & & & hline & &
& & hline end{tabular} 3. Of what importance is hair to mammals?4. Famine ont of the mamnal
skelesons ce diuplew and jdenaify the boees as fur as yous cars. Use your knowledge to lobel the
diagram Nelo5. Mamimale have an uppor ana lower lal and a mall maks of thinas in the ugper
comate known an. usine this mentbrane ast not bliruing. Why? 6. Ohserve the skull of the
earaivore and hertivore divglaped. Ibcinify the coroedid grocess. What. ane the mujor differmers
hetween the two sufl types in relation io Indaiag