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31 Cards in this Set

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rhizomes
the underground stems of some perennial grasses; these stems spread out to start new grass plants
seed
the part of a plant that can grow into a new plant; produced after the fertilization of an ovule (egg) by pollen cells
annuals
plants that live for just one year and must be grown from new seed again each year; many wildflowers fall in this category
pistil
the female part of a flower
fibrous roots
roots that branch out and are generally found closer to the surface of the ground
green plants
the only living things that can make their own food
oxygen
the gas which plants release into the air
pollination
the process of moving pollen from a stamen to a pistil
roots
the part of a plant that takes in water and minerals from the soil
plant
the life form that is made up of these three main parts: roots, a stem, and leaves
deciduous
trees which lose all their leaves in the fall
ovules
egg cells in the ovary of a flower
evergreen
trees that do not lose all their leaves in the fall; many have leaves shaped like needles
reproduce
to make more living things
root hairs
tiny hairs which take in water from the soil and which are found on the tips or roots
stamens
the male parts of a flower
corn
the most important crop in the United States
stem
the part of a plant which holds it upright; carries water and minerals from the roots up to the leaves
taproot
a root that grows straight down into the soil
fertilize
the process by which pollen enters the female cells of a flower
perennials
plants that can grow from year after year without having to be replanted
cells
all plants are made these
ovary
the part of a flower that holds the egg cells
root
the part of the plant which is in the ground and which helps to hold it in the soil
nectar
a sweet liquid that is made inside a flower; some insects, along with hummingbirds, feed on this sweet liquid
minerals
substances which plants need to grow
leaves
the parts of a plant where food is produced
photosynthesis
the process by which plants make food
pollen
a yellow powder produced by the male parts of a flower
chlorophyll
the material in a plant's leaves which makes them green and provides food
carbon dioxide
the gas taken from the air which plants use to help them make food