FREE Certified Arborist Identification and Selection Questions and Answers

Question 1

What is the term for a group within a species that naturally breeds to a feature that sets them apart from other members of the species?

Accepted Answer

Variety

Answer

Subspecies

Answer

Formal

Answer

Cultivar

Question 2

What factor determines a tree's value most in the CTLA trunk formula method?

Accepted Answer

Size

Answer

Foliage

Answer

Health

Answer

Location

Question 3

What is the name of a variety that requires human care and cultivation to maintain a specific trait?

Accepted Answer

Cultivar

Answer

Subspecies

Question 4

Maple, ash, dogwood, and horse chestnut trees primarily exhibit what type of leaf arrangement?

Accepted Answer

Opposite

Answer

Undulate

Answer

Alternate

Answer

Whorled

Question 5

Which color do the majority of newly planted roots have?

Accepted Answer

White

Answer

Brown

Answer

Black

Answer

Red

Question 6

The classification terms are listed in which order, from general to specific?

Accepted Answer

Class, order, family, genus

Answer

Genus, family, order, class

Answer

Family, class, order, genus

Answer

Order, class, phylum, kingdom

Question 7

A tree's hardiness refers to its ability to tolerate extremely _______ temperatures.

Accepted Answer

hot or cold

Answer

variable

Answer

temperate

Answer

moderate

Question 8

Which of these describes a hybrid?

Accepted Answer

Nepenthes x hookeriana

Answer

Cornus florida f. rubra

Answer

Gleditsia triacanthos var. inermis

Answer

Acer saccharum

Question 9

What term is used to classify a nonindigenous species that will propagate without assistance and has become established in a particular area?

Accepted Answer

Naturalized

Answer

Invasive

Answer

Introduced

Answer

Native

Question 10

What is the term used to describe a broad planting of the same species over a wide area?

Accepted Answer

Monoculture

Answer

Permaculture

Answer

Pathogen

Answer

Monocot