tree harvest
What method of tree harvesting involves removing all but a few selected trees?
Seed-tree method
What forms at the base of a petiole to sever a leaf from a branch?
abscission layer
What is the tallest tree species?
Coast Redwood
What is the food-storing central core of a young woody stem?
Pith
What terms refers to trees that keep their leaves year-round?
Evergreen
What system of forest management causes the forest to grow more high-quality trees that mature faster than they normally would?
Sustained yield management
What structures on a stem allows air to enter the stem and provide for respiration?
lenticels
What are the oldest known organisms on earth?
Bristlecone Pines
What is the rough outer covering of a tree?
Bark
What are the most common gymnosperms?
Conifers
What type of insect has a strong beak that it uses to pierce the plant's stem?
Sap-sucking insect
What is the portion of a stem between two leaves or two places where leaves once grew?
Internode
What is another name for broadleaf trees?
Hardwood trees
Once a leaf falls off, what is all that remains on the tree?
Leaf scar
What system recycles carbon and oxygen in the environment?
carbon-oxygen cycle
What type of insect either kills the tree or weakens it so that the wind can easily blow it over?
Wood-eating insect
Which type of root grows from a plant's stem, branches, or mature woody roots?
Adventitious root
What type of gymnosperm has no branches and frond-like leaves?
Cycad
What is the main stem of a tree called?
Trunk
The spiny trees especially designed for a life in the desert are called?
Cacti (or cactuses)
What is the science of managing and studying forests called?
Forestry
An annual growth ring is made of two layers, a lighter outer layer with large vessels and a darker inner layer with smaller vessels. What is the lighter outer layer called?
springwood
In a dichotomous identification key, how many choices are there at each question?
Two
What is the ring of growth cells that separates a tree's bark from the woody tissues?
Vascular cambium
The point beyond which conditions are unsuitable for tree growth is the?
Tree line