Which Best Explains How Australia Has Distinctive Organisms, Such as Marsupials

question 48

Multiple Choice

Which best explains how Australia has distinctive organisms, such as marsupials, that cannot be found anywhere else on Earth?

• A) Australia has an unusual climate that has triggered natural selection.
• B) There are fewer species of organisms in Australia than most continents.
• C) Australia experienced a significantly slower rate of evolutionary change.
• D) The predators of marsupials eliminated the populations in other locations.
• E) Australia was separated and isolated from other land masses for a long period of time.

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Definitions:

Penicillins

A group of antibiotics derived from Penicillium fungi, effective against a wide range of bacterial infections by inhibiting cell wall synthesis.

Cephalosporins

A class of β-lactam antibiotics derived from Acremonium, which are effective against a wide range of bacterial infections.

Acetic Anhydride

A reagent characterized by the formula (CH3CO)2O, used for acetylation reactions in organic synthesis to introduce acetyl groups to substrates.

Acetyl Chloride

A reactive organic compound, marked by the chemical formula CH3COCl, used in acetylation reactions to introduce acetyl groups into other molecules.