definitions
the series of changes in the life of an organism, including reproduction
life cycle
part of the female reproductive organ of a flower
ovary
the part of a plant that attaches it to the ground or to a support
root
vascular tissue in plants that conducts water and dissolved nutrients upward from the root
xylem
the upper angle between a leaf stalk or branch and the stem or trunk from which it is growing
axil
to convey pollen to the stigma of a flower
pollinate
the male fertilizing organ of a flower
stamen
the main body or stalk of a plant or shrub
stem
a green pigment, present in all green plants and cyanobacteria, responsible for absorption
chlorophyll
the middle part of the flower connecting the ovary to the stigma
style
colorless, odorless reactive gas constituting 21 percent of the atmosphere by volume
oxygen
a flowering plant's unit of reproduction
seed
a compact growth on a plant that develops into a leaf, flower, or shoot
bud
the process by which green plants use sunlight to synthesize foods from carbon dioxide
photosynthesis
the part of the seed that develops into a plant
embryo
a colorless, odorless gas produced by burning carbon and organic compounds: respiration
carbon dioxide
the female organs of a flower, comprising the stigma, style, and ovary
pistil
the part of a pistil that receives the pollen
stigma
a plastid that contains chlorophyll and in which photosynthesis takes place
chloroplast
any of the minute pores in the epidermis of the leaf or stem of a plant
stomata
begin to grow and put out shoots after a period of dormancy
germinate
the fertilizing element of flowering plants; fine, powdery, yellowish, grains or spores
pollen
a young plant, especially one raised from a seed
seedling
phloem
plant part that contains the embryo sac
ovule