BiG biology band
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- define pholem
- carries organic compounds in any direction
- what is the purpose of vascular tissue
- transports water and disolved substances
- define xylem
- carries water to roots > stems > leaves
- define botany
- the study of plants
- define cultivars
- selected by people, they have one distinguishing characteristic that sets them apart from other members of their species
- define agriculture
- growing plants for food and human use
- define woody tissue
- several layers of xylem
- define fruit
- part of flowering plant that usually contains the seeds
- describe cereal
- comes from grain and grasses, accounts for 50% of cultivated foods AND 50% of calories eaten each day
- name the 5 food crops
- cereal, root crops, begtables & fruits & nuts, legumes, spices & herbs
- describe root crops
- from roots or undergrounds stems
- define legumes
- members of the pea family, protein rich seeds in pods
- define vegtable
- foods derived of leaves, stems, seeds, and roots of soft plants
- name 3 plant adaptions to land
- plants could dry out through evaporation, reproducing by spores and seeds instead of sperm, and transporting water and disolved substances
- describe herbs
- come from leaves and can be grown at home
- define spices
-
comes from everywhere in the plant except the leaf and is tropical
- where did life first originate?
- oceans
- define cuticle
- waxy covering on surfaces that keeps out carbon dioxide
- define endosperm
- provides nutrishment for embryo
- how long ago did life appear on land?
- 430 billion
- define seed
- embryo surrounded by protective coat, may contain endosperm
- define stomata
- small opening to allow exchange of carbon dioxide and oxygen