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18 terms

Science 8 Ch 3 Bacteria to Plants

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species
closely related organisms that share similar characteristics and can reproduce among themselves
cuticle
a waxy, protective layer secreted by cells onto the surface of the plant
cellulose
chemical compound that plants can make out of sugar
vascular plant
plants that have tubelike structures that carry water, nutrients, and other substances throughout the plant
nonvascular plant
plants that do not have these tubelike structures and use other ways to move water and substances; that absorb water and other substances directly through its cell walls instead of through tubelike structrues
spore
a waterproof reproductive cell that can grow into a new organism
pioneer species
organisms that are the first to grow in new or disturbed areas
rhizoid
threadlike structures that anchor nonvascular plants where they grow
seed
plant embryo and food supply in a protective coating
stomata
small openings in the epidermis of leaves that allow carbon dioxide, water and oxygen to enter and exit from a leaf
guard cell
each stomata has two guard cells that open and close it
xylem
tissue that is made up of hollow, tubular cells that are stacked on top of one another to form a vessel; transport water and dissolved substances from the roots throughout the plant
phloem
plant tissue made up of tubular cells that are stacked to form tubes; move food from where it is made to where it is used or stored
cambium
tissue that produces most of the new xylem and phloem cells
gymnosperm
vascular plants that produce seeds which aren't protected by fruit; produce seeds on the surface of female reproductive structures, such as cones
angiosperm
vascular plants that flower and produce fruit with one or more seeds, with the fruit developing from a part of parts of one or more flowers
monocot
angiosperms that have one cotyledon inside their seeds {corn, rice, wheat, barley, bananas, pineapples, dates, lilies, orchids }
dicot
angiosperms that have two cotyledons inside their seeds {peanuts, green beans, peas, apples, organes, maple oak and elm}