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100. Placental Mammals
Test Description: ScienceStudyGames.com
Instructions: Answer all questions to get your test result.
1) Placental mammals develop their offspring inside the _____________.
A
female
B
pouch
C
egg
D
male
2) The placenta is an organ that develops in a pregnant female.
A
True
B
False
3) Food, oxygen and nutrients pass through the placenta to the offspring.
A
True
B
False
4) The offspring passes ___________through the placenta back to the mother.
A
water
B
waste
C
hormones
5) The ____________________connects the placenta to the offspring.
A
umbilical cord
B
uterus
C
mammary glands
6) Placental mammals are classified as to how they eat and how they_____________.
A
live
B
care for their young
C
feed their offspring
D
move
7) Whales, dolphins and porpoises are adapted for swimming.
A
False
B
True
8) Sea mammals do need or do not need oxygen to breathe.
A
do not need
B
do need
9) The carnivore group of mammals , such as large cats, otters, and possibly seals, are all___________________.
A
herbivores
B
predators
C
scavengers
D
parasites
10) Primates, that include, monkeys, apes and humans all have ____________brains and eyes that face forward.
A
large
B
small
C
unimpressive
D
underdeveloped
11) The gestational period refers to the time it takes the mammal to give life to their offspring.
A
True
B
False
12) Elephants are the largest___________mammals.
A
carnivore
B
land
C
sea
D
herbivore
13) Elephants carry their unborn offspring the longest of all mammals. She carries her offspring about ________________.
A
12 months
B
9 months
C
20 days
D
21 months
*select an answer for all questions
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