Leaves Flashcards
biodiversity
is biological diversity and describes variety in genes and ecosystems
History of Chicago
Chicago used to be rich and nutrient but was turned into a city, now. by fresh water and there are different organisms
3 local limestone
permian (mass marine extinction 96%), silurian (plant invasion), Cambrian (Cambrian explosion, origin of most marine and invertebrate)
Wisconsin glacier
carved out the Great Lakes last ice age and 20% of worlds fresh water
Historial figures
Father Marquette and Louis Joliet (first europeans to see Chicago jesuit) Dusable established 1st settlement in Chicago
Community
assemblage of two or more populations of different species occupying same area
invasive species
species that effects the habitat it invades usually brought in by humans
lake
aquatic environment of still water that are permanently wet. too deep for rooted plants to grow. mussels and fish live here
marsh
shallow wetlands characterized by algae and floating plants and have frogs and turtles and dragonflies
prairie
are grassland with few to no trees are maintained by low moisture or periodic fire. home to birds, butterflies, and grazing mammals
river
aquatic environments of flowing water. have rocks and fish. streams vary
sand dunes
form around shores of lakes and oceans where sand piles up by wind and wave action. soil has low fertility and low moisture
savanna
savanna transitional between prairie and woodland where soil is poor. contain grasses and shrubs and trees.
swamp
shallow wetlands that are forested with shrubs or trees. trees can’t usually survive in water
woodland
supported with trees, variety of animals,, open growth and grass
deciduous
broad
evergreen
scale like, awl like, needle like
deciduous - simple and compound
simple - one leaf blade and one leaflet
compound - one leaf blade but multiple leaflets
look for the bud
compound leaves palmate and pinnate
palmate - leaves come from a single point
pinnate - leaves come from multiple points
double pinnately compound
only one lead made upon smaller leaflets (subdivided twice0
arrangement of leaves
phyllotaxy
alternate
alternating sides
opposite
leaves on opposite sides
whorled
leaves all together like a flower
sinus
notches
leaf shapes
cordate heart shaped, oval, triangular/deltoid
leaf bases
how leaf attaches to petiole
asymmetrical and symmetrical
leaf margins
different edges
serrated - has teeth
entire - smooth edges
wavy
lobbed - deeply indented margins
leaf veination
palmate net - multiple veins radiate outward