Plants 1

Question 1

Plant adaptations must adapt to

Answer 1

Cold

Episodic herbivory

Low pollinator frequencies

Question 2

Arctic microhabitats

Answer 2

Microhabitat distinctions is large and so fine-grains that moving a plant a few centimeters might easily put it into a habitat type for which it is ill adapted

Question 3

Annuals

Answer 3

Plants least adapted to the north are annuals

Life cycle in one year

Can be supported in low Arctic and Boreal forests

Question 4

Biennials

Answer 4

Uncommon at higher latitudes but more common than annuals

Complete life cycle in 2 years

Leaves and roots year one and flower in year 2

Question 5

Perennials

Answer 5

Most arctic plants

Live for many years

Long lived root system

Roots important for soil stabilization

Question 6

Treeline is determined by

Answer 6

Lack of summer warmth

Question 7

Photosynthesis is largely restricted to period where

Answer 7

Tissues are warm enough and free water is available

Question 8

Nearly all annual tree growth is devoted to

Answer 8

Essentials of life (roots and leaves) with little left to convert into wood

Question 9

North American forest tundra represents a transition zone between

Answer 9

Boreal forest and the treeless tundra

Question 10

The most common denominator among all trees and shrubs of northern areas is some ability to withstand

Answer 10

Low temp stresses

Desiccation