Cactus Quiz: questions and answers

1. A number of Cactus Plants together are called?

Cactuses

Cactus

Cacti

2. Photosynthesis is carried out by cactus via which part of a plant?

Stems

Leaves

Roots

3. Which process does the cactus does only during the night?

Crassulacean acid metabolism

Photosysthesis

Growth

4. What is the origin of the word «Cactus»?

Greek

British

French

5. Which group does Cactus belongs to?

Buxbaumiales

Caryophyllales

Pteridophytes

6. When did Cactus originate?

Cretaceous

Silurian

Paleogene

7. Smallest Cactus is as small as how many centimeters in diameter?

10

5

1

8. What can tell us about the age of a cactus?

Height

Roots

Spines

9. What is the scientific name of Krainz’ Crown Cactus?

Saguaro

Cactaceae

Rebutia marsoneri Werderm

10. "Saguaros" average life is estimated at how many years?

150-200 years

80-90 years

100-150 years

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