mammals

Question 1

hearts

Answer 1

4 chambered

Question 2

Arose from early reptile

Answer 2

triassic era

Question 3

Only one jaw bone

Answer 3

therapsids
220 million years ago

Question 4

optic lobes

Answer 4

2-4

Question 5

Absence of ______ in red blood cells

Answer 5

nuclei

Question 6

of cervical vertebrae

Answer 6

7

Question 7

bones in ear

Answer 7

3

Question 8

chordate

Answer 8

anything with spinal cords

Question 9

Monotremata

Answer 9

egg laying

Question 10

prototheria

Answer 10

monotremata
-echidna
-platypus

Question 11

metatheria

Answer 11

marsupialia
-pouched
-born immature
-complete development in mom’s pouch

Question 12

Marsupial development:

Answer 12

-fertilized egg surrounded by shell membrane, but NO SHELL
-later development; short lived placenta

Question 13

Kangaroo niche

Answer 13

grazers
middle of triangle

Question 14

Eutheria

Answer 14

true placental

Question 15

eutheria

Answer 15

largest and most successful class
young remain in uterus

Question 16

Mammals location

Answer 16

everywhere but antarctica

Question 17

rodentia

Answer 17

-herbivores with chisel incisors
-SINGLE pair of incisors
-largest order of placentals (1814sp)

Question 18

rodents:

Answer 18

squirrels, rats, mice, beaver, porcupine

Question 19

eutheria

Answer 19

whales, elephants, dog, shrew, armadillo… etc

Question 20

marsupialia

Answer 20

opposums, kangaroo, koala

Question 21

prototheria

Answer 21

echidna, platypus

Question 22

chiroptera

Answer 22

flying mammals
sonar
FOUR long fingers

Question 23

insectivora

Answer 23

insect eating
fossorial (live underground)

Question 24

carnivora

Answer 24

teeth adapted for seizing prey and tearing flesh
none native to australia
learn to hunt

Question 25

cats

Answer 25

felidae

Question 26

canidae

Answer 26

dogs

Question 27

bears

Answer 27

ursidae

Question 28

racoons

Answer 28

procyonidae

Question 29

weasel

Answer 29

mustellidae

Question 30

hyena

Answer 30

hyecinidae

Question 31

fox that climbs trees

Answer 31

grey fox

Question 32

plantigrade

Answer 32

flat foot walkin

Question 33

Koala habitat

Answer 33

schleripherous forest

Question 34

bear lips

Answer 34

prehensile lips

Question 35

bat that fishes

Answer 35

bulldog bat

Question 36

chordate mammal

Answer 36

tunicate
sea squid

Question 37

primates

Answer 37

-binocular vision
-well developed cerebrum
-arms that rotate around their shoulder joints

Question 38

primate evolution

Answer 38

2 groups:
prosimians
anthropoids

Question 39

braceation

Answer 39

monkey swing through trees

Question 40

artiodactyla

Answer 40

even toed ungulates
-deer, sheep, giraffe

Question 41

perissodactyla

Answer 41

odd toed ungulates
horse, rhino, elephant

Question 42

cetacea

Answer 42

tail- fluke
baleen whales- keratin plates

Question 43

pinnipedia

Answer 43

seals, walruses
pinni= small ear

Question 44

sirenia

Answer 44

manatees and dugongs

Question 45

lagomorpha

Answer 45

gnawing animals
hind legs larger
among fastest mammals

Question 46

lagomorpha teeth vs. rodentia

Answer 46

four to two incisors
2 to 1 pair

Question 47

edentata

Answer 47

insect eaters
mostly toothless: peglike teeth
armadillo

Question 48

proboscidea

Answer 48

trunked mammals
trunk= upper incisors
18hr/day feeding