About this Study Set
This study set covers Plants & Nature through
18 practice questions.
A challenging collection of 18 questions covering diverse botanical, mycological, and ecological facts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Advanced Botanical and Natural World Trivia study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which plant hormone is primarily responsible for the ripening of fruit and the abscission of leaves?
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A
Auxin
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B
Gibberellin
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C
Ethylene
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D
Cytokinin
2
What is the primary substance that makes up the cell walls of fungi, distinguishing them from plant cell walls?
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A
Cellulose
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B
Chitin
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C
Lignin
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D
Pectin
3
In botanical terms, what is the specific name for the phenomenon where a plant species has separate male and female flowers on the same individual plant?
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A
Dioecious
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B
Monoecious
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C
Hermaphroditic
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D
Polyandrous
4
Which Australian tree species is renowned for having the highest oil content in its leaves and is a primary food source for koalas?
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A
Eucalyptus globulus
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B
Acacia pycnantha
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C
Melaleuca alternifolia
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D
Corymbia ficifolia
5
What is the specialized tissue in plants that transports water and dissolved minerals from the roots to the leaves?
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A
Phloem
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B
Cambium
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C
Xylem
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D
Pith
6
Which group of plants, known as gymnosperms, consists of only one extant species, Ginkgo biloba?
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A
Cycadales
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B
Ginkgoales
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C
Pinales
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D
Gnetales
7
What is the term for a symbiotic relationship between a fungus and the roots of a vascular plant?
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A
Rhizobia
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B
Mycorrhiza
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C
Lichens
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D
Endophyte
8
Which of these plants is considered a 'hemiparasite' because it performs photosynthesis but extracts water and nutrients from a host tree?
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A
Cuscuta
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B
Mistletoe
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C
Rafflesia
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D
Orobanche
9
What is the primary chemical compound found in the leaves of the genus Atropa that makes the plant highly toxic?
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A
Atropine
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B
Nicotine
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C
Caffeine
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D
Morphine
10
Which botanical family does the commercial coffee plant, Coffea arabica, belong to?
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A
Solanaceae
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B
Rubiaceae
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C
Fabaceae
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D
Asteraceae
11
What is the largest living organism by surface area/root network, often found in Oregon's Malheur National Forest?
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A
Pando (Quaking Aspen)
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B
Armillaria ostoyae (Honey Fungus)
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C
Sequoiadendron giganteum
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D
Ficus benghalensis
12
Which plant mechanism involves the movement of water vapor out of the plant and evaporation into the atmosphere?
-
A
Respiration
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B
Transpiration
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C
Photosynthesis
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D
Guttation
13
The 'Welwitschia mirabilis' is a desert plant famous for its longevity and is native to which geographical region?
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A
The Atacama Desert
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B
The Namib Desert
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C
The Gobi Desert
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D
The Sahara Desert
14
What is the botanical term for a fruit that develops from a single flower with many separate carpels, such as a strawberry or raspberry?
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A
Pome
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B
Aggregate fruit
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C
Drupe
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D
Hesperidium
15
Which mineral is the central atom in the chlorophyll molecule, essential for photosynthesis?
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A
Iron
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B
Magnesium
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C
Calcium
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D
Potassium
16
What is the process by which plants convert nitrogen gas from the atmosphere into ammonia, usually facilitated by bacteria in root nodules?
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A
Nitrogen assimilation
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B
Nitrogen fixation
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C
Denitrification
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D
Nitrification
17
Which of the following describes the 'C4' photosynthetic pathway?
-
A
A method to prevent photorespiration in hot climates
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B
A way to grow in low light conditions
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C
A process of aquatic plant breathing
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D
A method used exclusively by mosses
18
What is the scientific name for the phenomenon of plants growing towards a light source?
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A
Gravitropism
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B
Thigmotropism
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C
Phototropism
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D
Chemotropism
