Tripoblastic - Deuterostomes - Chordata - Mammals

Question 1

Two subclasses of mammals?

Answer 1

Prototheria and theria

Question 2

‘Theria’?

Answer 2

Beasts

Question 3

‘Prototheria’?

Answer 3

Before beasts

Question 4

Mammal fur made of

Answer 4

Keratin

Question 5

3 bones link eardrum to inner ear?

Answer 5

Pinna

Question 6

How many heart chambers?

Answer 6

4

Question 7

What ventilates floppy lungs

Answer 7

Diaphragm

Question 8

Endothermic or exothermic?

Answer 8

Endothermic

Question 9

When did mammals dramatically increase in number, diversity and size?

Answer 9

After extinction of non-avian dinosaurs (end of Mesozoic)

Question 10

Prototheria include monotremes. E.g…

Answer 10

Duck billed platypus and echindas

Question 11

Characteristics of monotremes

Answer 11

Lack a placenta, lay eggs
lack nipples, ooze milk onto fur
Have electroreceptors

Question 12

What do marsupials have to carry and feed young?

Answer 12

Ventral pouch

Question 13

Placental mammals are nourished by placenta and carried in the womb until?

Answer 13

Gestation

Question 14

(Theria order) Chiroptera means?

Answer 14

Hand wings

Question 15

The hind limb of chiroptera is modified for

Answer 15

Prolonged hanging and squeezing into crevices

Question 16

Megachroptera characteristics

Answer 16

Fox like faces, wrap wings around when roosting

Question 17

Microchiroptera characteristics

Answer 17

mostly insect eating, temperate species can hibernate

Question 18

How do different bats use echolocation?

Answer 18

Micro - larynx makes cries

Mega - tongue clicking

Question 19

(Theria order) where are most Primates found?

Answer 19

Tropical forests

Question 20

How many years ago did primates descend?

Answer 20

56 million

Question 21

Forward facing eyes means what kind of vision?

Answer 21

Binocular

Question 22

Lemurs, potto and loris are what type of primate?

Answer 22

Prosimians

Question 23

tarsiers, monkeys, apes and humans are what?

Answer 23

Anthropoids