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the top of a tree
crown
cells that move sugar through trees
phloem
cells that move water through trees
xylem
cutting off a ring of bark all around a tree
girdling
clogged xylem found in the center of a tree
heartwood
xylem tubes that still carry water make up this
sapwood
this is in charge of making new phloem and xylem cells
cambium
wide xylem tubes made when there's a lot of water in the soil
earlywood
narrow xylem tubes that are made when there's not much water in the soil
latewood
this is made of earlywood and latewood and is used to age a tree
annual rings
this is a pencil length of wood drilled out of a tree trunk
core sample
this is the type of forest that we have in Illinois now
temperate deciduous forest
cooler than tropical forests but warmer than boreal forests
temperate forests
broadleaf trees whose leaves change color and drop
deciduous
an area of trees and undergrowth defined by four layers in Illinois
forest
the top layer of a forest
canopy
