Biology Chapter 23 hpatdh

23 terms by estudianteOHyolanda 

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cuticle

a waxy or fatty and watertight layer on the external wall of epidermal cells

spore

a reproductive cell or multicellular structure that is resistant to environmental conditions

sporophyte

in plants and algae that have alternation of generations, the diploid individual or generation that produces haploid spores

gametophyte

in alternation of generations, the pspore a rehase in which gametes are formed; a haploid individual that produces gametes

archegonium

a female reproductive structure that produces a single egg and in which fertilization and development take place

antheridium

a reproductive structure that produces male sex cells in seedless plants

sporangium

a specialized sac, case, capsule, or other structure that produces spores

rhizome

a horizontal, underground stem that provides a mechanism for asexual reproduction

frond

the leaf of a fern or palm

sorus

a cluster of sporangia

gymnosperm

a vascular seed plant whose seeds are not enclosed by a fruit

angiosperm

a flowering plant that produces seeds within a fruit

ovule

a structure of a seed plant that contains a female gametophyte and that develops into a seed after fertilization

seed

a plant embryo that is enclosed in a protective coat

pollen grain

the structure that contains the male gametophyte of seed plants

pollination

the transfer of pollen from the male reproductive structures (anthers) to the tip of a female reproductive structure (pistil) of a flower in angiosperms or to the ovule in gymnosperms

monocot

an angiosperm that produces seeds that have only one cotyledon

cotyledon

the embryonic leaf of a seed

dicot

an angiosperm that produces seeds that have two cotyledons

stamen

the male reproductive structure of a flower that produces pollen and consists of an anther at the tip of a filament

anther

the tip of a stamen, which contains the pollen sacs where pollen grains form

pistil

the female reproductive part of a flower that produces seeds and consists of an ovary, style, and stigma

fruit

a mature plant ovary; the plant organ in which the seeds are enclosed

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