Abeka 7th Science Test 11 p1 L158

What forms at the base of a petiole to sever a leaf from a branch?

• Branch collar
• Abscission layer
• Petiole sheath
• Leaf scar

What method of tree harvesting involves removing all but a few selected trees?

• Selection cutting

• Clear-cutting
• Seed-tree method

• Shelterwood cutting

What structures on a stem allow air to enter the stem and provide for respiration?

• Phloem
• Xylem
• Stomata
• Lenticels

What is the tallest tree species?

• Coast redwood

• Norway spruce

• Douglas fir

• Giant sequoia

What is the portion of a stem between two leaves or two places where leaves once grew?

• Internode
• Branch
• Petiole
• Node

What is another name for broadleaf trees?

• Coniferous trees
• Evergreen trees
• Pine trees
• Hardwood trees

What are the oldest known organisms on earth?

• coast redwoods

• Douglas Fir

• Giant Sequoias

• Bristlecone pine

Which type of root grows from a plant stem, branches, leaves, or mature woody roots?

• Fibrous roots
• Taproots
• Bulbous roots
• Adventitious roots

What system of forest management causes the forest to grow more high quality trees that mature faster than they normally would?

• Clearcutting
• Sustained yield management

• Reforestation

• Shelterwood

What type of gymnosperm has no branches and frond-like leaves?

• Ginkgo
• Pine
• Spruce
• Cycad