biology reading quiz (pg. 19-22) Flashcards
living things comprised of more than one cell
multicelluar organisms
a group of structures designed to function together as a unit to perform a specific job for an organism
system
How many systems are there? Name 3.
11 ; cardiovascular, skeletal, respiratory
part of the plant that is ordinarily underground
root system
part of the plant that is usually above ground
shoot system
a structure within a system that has a definite form and performs a definite function for the system
organ
the flat portion of the leaf
the blade
carry food and water throughout the blade
veins
attaches the blade to the stem
petiole
leaves that lack a petiole
sessile
small leaf-like structures that helped to cover the lief when it was developing
stipules
contain developing leaf or stem structures
buds
more than one blade on every petiole
compound
when there are three or more leaves growing from each node
whorld
only one leaf grows from each node in an alternating pattern up the branch
alternate
one blade on every petiole
simple compound
Cluster of leaves growing around the base (and why is it named this?)
rosette; named because it resembles a rose
how do individual leaves orient themselves?
each blade is at a 90 degree angle
the growth response of a plant stimulated to light
phototropism
how many systems does a plant have?
2; root system and shoot system
