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Chapter 10 Key Terms
The keyterms from chapter 10.
14
Science
7th Grade
02/09/2011

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Term
frond
Definition
leaf of a fern that grows from the rhizome
Term
gametophyte stage
Definition
plant life cycle stage that begins when cells in reproductive organs undergo meiosis and produce haploid cells
Term
germination
Definition
series of events that results in the growth of a plant from a seed
Term
ovary
Definition
swollen base of an angiosperm's pistil where egg producing ovules are found
Term
ovule
Definition
in seed plants, the female reproductive part the produces eggs
Term
pistil
Definition
female reproductive organ inside the flower of an angiosperm
Term
pollen grain
Definition
small structure produced by the male reproductive organs of a seed plant
Term
pollination
Definition
transfer of pollen grains the the female part of a seed plant by agents such as gravity, water, wind, and animals
Term
prothallus
Definition
small green heart shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil
Term
rhizome
Definition
underground stem
Term
sori
Definition
fern structures in which spores are produced
Term
spore
Definition
haploid cells produced in the gametophyte stage that can divide by mitosis to form plant structures or an entire new plant or can develop into sex cells
Term
sporophyte stage
Definition
plant life cycle stage that begins when an egg is fertilized by a sperm
Term
stamen
Definition
male reproductive organ inside the flower of an angiosperm
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