100. Placental Mammals Question Preview (ID: 50738)


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Placental mammals develop their offspring inside the _____________.
a) egg
b) male
c) female
d) pouch

The placenta is an organ that develops in a pregnant female.
a) True
b) False
c)
d)

Food, oxygen and nutrients pass through the placenta to the offspring.
a) True
b) False
c)
d)

The offspring passes ___________through the placenta back to the mother.
a) waste
b) hormones
c) water
d)

The ____________________connects the placenta to the offspring.
a) uterus
b) umbilical cord
c) mammary glands
d)

Placental mammals are classified as to how they eat and how they_____________.
a) care for their young
b) feed their offspring
c) move
d) live

Whales, dolphins and porpoises are adapted for swimming.
a) True
b) False
c)
d)

Sea mammals do need or do not need oxygen to breathe.
a) do need
b) do not need
c)
d)

The carnivore group of mammals , such as large cats, otters, and possibly seals, are all___________________.
a) herbivores
b) scavengers
c) predators
d) parasites

Primates, that include, monkeys, apes and humans all have ____________brains and eyes that face forward.
a) large
b) underdeveloped
c) small
d) unimpressive

The gestational period refers to the time it takes the mammal to give life to their offspring.
a) True
b) False
c)
d)

Elephants are the largest___________mammals.
a) herbivore
b) land
c) sea
d) carnivore

Elephants carry their unborn offspring the longest of all mammals. She carries her offspring about ________________.
a) 9 months
b) 12 months
c) 20 days
d) 21 months

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