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Gr 6 Science 1.5-1.8
Observing God's World Chapter Checkup 1B-Section A
Term | Definition |
---|---|
tree | a tall plant with a single woody stem |
perennial | a type of plant that does not die after one season but lives for many years |
annuals | plants that live for only one year |
biennials | plants that live for two years |
dendrologist | a scientist who studies trees |
cambium layer | the part of a tree's trunk where growth takes place |
annual growth ring | an inner band of light spring wood and an outer band of dark summer wood that make up one year's growth of a tree |
broadleaf tree | a tree with broad, flat leaves; most bear flowers and produce seeds |
deciduous tree | a tree that loses its leaves in the fall |
conifer | a cone-bearing tree |
evergreen | a tree that keeps its leaves year round |
spores | single cells produced instead of seeds in some plants |
rhizoids | a fern's roots that grow downward from the underside of the stem |
fronds | leaves of a palm tree or a fern |
kelp | a kind of brown algae that is the largest type of alga |
saprophytes | fungi that feed on dead metter |
mycelium | a network of cells strung together in a threadlike structure that makes up the main part of a fungus |
hyphae | tiny, white, hairlike structures of a mold |