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BS1007 Cairns > Mammals > Flashcards

Mammals Flashcards

1
Q

Which of these clades are considered mammals?

A. Eutherians
B. Metatherians
C. Amniotherians
D. Prototherians

A

A, B, D

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2
Q

Metatherians are:

A. Monophyletic
B. Tetraphyletic
C. Polyphyletic
D. Paraphyletic

A

A. Monophyletic

Metatherians (marsuipals) are monophlyetic because a clade is a group of organisms that includes a common ancestor

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3
Q

Paraceratherium was the largest living:

A. Aves
B. Mammal
C. Reptile
D. Shark

A

B. Mammal

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4
Q

What is the role of Sebaceous glands?

A

lubrication of skin and hair

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5
Q

____ are solid, shed seasonally, and are made of bone.

A. Horns
B. Scales
C. Antlers
D. Osteoderms

A

C. Antlers

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6
Q

Which of these modifications are associated with mammals?

A. Fused clavicles, large keel on sternum
B. Spongey centre spines, scales, hollow horns
C. Antlers, osteoderms, spongey centred spines
D. cutaneous respiration, aposematism

A

B. Spongey centre spines, scales, hollow horns

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7
Q

Horns are made of keratin or bone?

A

Keratin

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8
Q

What are the two types of glands used for cooling?

A. Eccrine & Exocrine
B. Apocrine & Exocrine
C. Endocrine & Apocrine
D. Eccrine & Apocrine

A

D. Eccrine & Apocrine

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9
Q

Eccrine glands:

A. found on most of the body and open directly onto skin surface
B. open into hair follicle
C. secrete substances into a ductal system
D. type of mammory gland triggered by prolactin

A

A. found on most of the body and open directly onto skin surface

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10
Q

Apocrine glands open into ____ leading to skin surface

A

hair follicles

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11
Q

Prototherians are:

a. ancestral chordates
b. monotremes
c. marsupials
d. placental

A

B. monotremes

think reptile like traits

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12
Q

Metatherians are:

a. ancestral chordates
b. monotremes
c. marsupials
d. placental

A

C. marsupials

M & M

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13
Q

Differentiated cervical, thoracic, lumbar, sacral and caudal vertebrae are associated with which group?

A

Mammals

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14
Q

Highly differentiated and regionalization of the vertebrae is associated with:

A

Mammals

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15
Q

Both birds and mammals have complete separation of ____.

A

Oxygenated and deoxygenated blood

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16
Q

The systemic circuit pumps blood from heart to _____ back to heart.

A

body

17
Q

The pulmonary circuit pumps blood from heart to _____ back to heart.

A

lungs

18
Q

Double pumping means ____ separation of oxygenated and deoxygenated blood.

A

complete

19
Q

Mammals and crocodiles have a _____.

A. complex glandular system
B. 4 chambered heart with incomplete separation
C. Prolactin hormone
D. Muscular diaphrahm

A

D. Muscular diaphrahm

20
Q

Unlike amphibians, mammals have a ____ pressure breathing

A. positive gradient
B. negative gradient
C. passive gradient
D. countercurrent gradient

A

B. negative gradient

21
Q

A change of concentrations will always move from high to low. T/F

A

True

22
Q

For mammals, breathing in is an ___ process while breathing out is a ___ process.

A

active, passive

23
Q

Muscles controlling thoracic cavity relax and reduces the volume. Which causes air pressure to:

A. equalise
B. increase
C. decrease
D. deflate

A

B. increase

24
Q

In mammals, breathing out causes:

A. Muscles controlling thoracic cavity relax and reduces the volume, causes air pressure to increase
B. lower air pressure in lungs below external air
C. Muscle expansion in the thoracic cavity causing lower air pressure
D. air to flow through nostrils and mouth, down trachea, bronchi and bronchioles into alveoli

A

A. Muscles controlling thoracic cavity relax and reduces the volume, causes air pressure to increase

25
Q

The role of kidneys is to filter urea waste from ___

A

blood

26
Q

The organ that attach to ureters and drains nitrogenous waste to bladder is called

A

kidney

27
Q

tubules arranged in highly organized manner and closely associated with network of capillaries

A

Kidney

28
Q

Fish excrete nitrogenous waste in the form of ___, reptiles in the form of ___, and mammals in the form of ____.

A. ammonia, uric acid, urea
B. Uric acid, dark urine, ammonia
C. Uric acid, ammonia, urea
D. ammonia, urine, uric acid

A

A. ammonia, uric acid, urea

29
Q

Osmoregulation in mammal metanephric kidneys is controlled by + or - feedback hormones

A

negative

30
Q

heterogametic chromosomes means:

A

♂ X and Y

31
Q

homogametic chromosomes mean

A

♀ 2 X chromosomes

32
Q

Monotremes are

a. viviparous
b. oviparous
c. ovoviviparous

A

b. oviparous

33
Q

All mammals have 4 limbs except

A. Cetaceans
B. Eulipotophyta
C. Pinnipedia
D. Chiroptera

A

A. Cetaceans

34
Q

Two occipital condyles where neck attaches to vertebrae means turning is limited, T/F?

A

True

35
Q

Which classes have a pinna?

A. reptiles & amphibians
B. chondrichthyes
C. all chordata
D. mammals only

A

D. mammals only

36
Q

Which mammalian order is the largest?

A. Eulipotophyla
B. Rodentia
C. Chiroptera
D. Primates

A

B. Rodentia

BS1007 Cairns (22 decks)

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