Question 1

The mammal group called Prototherians

Accepted Answer

A)  became extinct in Australia with the introduction of the dingo. 
B)  lack any specialised morphological or ecological features. 
C)  do not secrete milk from mammary glands. 
D)  have reptile-like bones in their limbs and girdles. 
E)  have fossils found only in Australia. 
A)  became extinct in Australia with the introduction of the dingo. 
B)  lack any specialised morphological or ecological features. 
C)  do not secrete milk from mammary glands. 
D)  have reptile-like bones in their limbs and girdles. 
E)  have fossils found only in Australia.

Question 2

Fabaceae (peas) and Mimosaceae (wattles) have which of the following important ecological characteristics in common?

Accepted Answer

A)  Root mycorrhizae. 
B)  Nitrogen-fixing bacteria in nodules on their roots. 
C)  Seed in woody cones. 
D)  Thick bark to resist fire. 
E)  C4 physiology. 
A)  Root mycorrhizae. 
B)  Nitrogen-fixing bacteria in nodules on their roots. 
C)  Seed in woody cones. 
D)  Thick bark to resist fire. 
E)  C4 physiology.

Question 3

New Zealand has no native terrestrial mammals, only three species of frogs and limited bird fauna because of

Accepted Answer

A)  inhospitable climate. 
B)  geographic isolation. 
C)  lack of available edible flora. 
D)  geological instability. 
E)  pathogenicity. 
A)  inhospitable climate. 
B)  geographic isolation. 
C)  lack of available edible flora. 
D)  geological instability. 
E)  pathogenicity.

Question 4

The distinctive appearance of the Australian flora is due to

Accepted Answer

A)  its extensive dominance by Acacia and Eucalyptus. 
B)  the presence of fire-tolerant species. 
C)  the high diversity of gymnospermous species 
D)  the unique climatic conditions. 
E)  the low number of endemic taxa. 
A)  its extensive dominance by Acacia and Eucalyptus. 
B)  the presence of fire-tolerant species. 
C)  the high diversity of gymnospermous species 
D)  the unique climatic conditions. 
E)  the low number of endemic taxa.

Question 5

Lignotubers

Accepted Answer

A)  are fire-resistant plants. 
B)  are plants with thick, insulating bark that protects them from fire. 
C)  are dormant buds at the base of the stem of trees which sprout after fire. 
D)  occur in species of wet forest plants and are stimulated to grow by fire. 
E)  are a complex root system which food storage to enable sprouting after fire. 
A)  are fire-resistant plants. 
B)  are plants with thick, insulating bark that protects them from fire. 
C)  are dormant buds at the base of the stem of trees which sprout after fire. 
D)  occur in species of wet forest plants and are stimulated to grow by fire. 
E)  are a complex root system which food storage to enable sprouting after fire.

Exam 42: Australian Biota

The mammal group called Prototherians

Fabaceae (peas) and Mimosaceae (wattles) have which of the following important ecological characteristics in common?

New Zealand has no native terrestrial mammals, only three species of frogs and limited bird fauna because of

The distinctive appearance of the Australian flora is due to

Lignotubers

Nature of Molecules

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