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27 Cards in this Set

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consists of all organisms in a particular area, along with physical components of the environment, such as atmosphere, precipitation, surface water, sunlight, soil, and nutrients.
Ecosystem
"plant-eaters"
herbivores
"meat eaters"
carnivores
"all eaters"
omnivores
plants form the base of the terrestrial food chain
producers
herbivores eat plants
primary consumers
carnivores eat animals
secondary consumers
secondary carnivores eat carnivores
tertiary consumers
effort to find naturally occurring compounds that can be used; also known as chemical prospecting
bioprospecting
plant growth in liquid culture instead of soil
hydroponically
biologists who specialize in the study of how humans use plants
ethnobiologists
how green plants originated and diversified...
1. analyze morphological traits
2. analyze fossil record
3. assess similarities and differences in molecular traits
several phyla of green plantrs that lack vascular tissue; liverworts, hornworts, and mosses; also called byrophytes
nonvascular plants
several phyla of green plants that have vascular tissue and make seeds; gymnosperms and angiosperms
seed plants
several phyla of green plants that have vascular tissue, but do not make seeds; include horsetails, ferns, lycophytes, and whisk ferns
seedless vascular plants
"naked seed"
gymnosperms
"encased seed"
angiosperms
protectice struture for angiosperm seeds
carpel
consists of en embryo and a store of nutritive tissue, surrounded by a tough protective layer.
seed
specialized groups of cells that conduct water or dissolved nutrients from one part of the plant body to another
vascular tissue
reproductive cells
spores
waxy protective coating
cuticle
encases spores and pollen from modern land plants and helps resist drying
sporopellenin
spore producing structure
sporangia
a sequence of lineages that are not monophyletic.
grade
one common ancestor
monophyletic
includes some, but not all descendants of the last common ancestor of the group
paraphyletic