Ball out
What is the point beyond which conditions are unsuitable for tree growth?
Tree line
What type of insect kills trees or weakens them?
Wood eating insects
What is the ring of growth cells that separates the tree bark from the woody tissue?
Vascular Cambium
What is the light outer layer of a growth ring called?
Springwood
What is the name of science and studying of a forest called?
Forestry
What system recycles, carbon and oxygen in the environment
Carbon oxygen cycle
What type of fire burns the bottom portion and lower limbs of a tree?
Surface
A point on a stem that a leaf grows from a (n)
node
Once a leaf falls off a tree, what is left on the tree
A leaf scar
What term refers to trees that keep their leaves year-round
Evergreen
A tree that loses all of its leaves in the fall and winter is called?
Deciduous
Growth of a tree and length is what kind of growth
Primary
An object that produces carbon dioxide is a carbon?
Source
What is the spiny tree designed for life in the desert
cactus
A forest has a top layer of inner leaves that are called
A canopy
What forest extends from Canada to Mexico?
Rocky Mountains
What is the most heavily managed forest region?
Southern forest
The hard inactive deadwood of a tree is
Heartwood
A tree with several main branches close to the ground has what kind of branching
Spreading
What type of for stretches from West Oklahoma and Texas?
Southern Forest
What Forest contains the greatest species of trees?
Central broadleaf
A tree is producing abnormal growth. What type of insect is infecting this tree?
Gall making
A root that goes deep in the ground, it has secondary roots branching off the main is a
taproot
What forest produces the largest percentage of wood & paper products
Pacific coast
What forces the largest forest region?
Northern forest