Unit 2 - Biodiversity Flashcards
learn how to classify living things (16 cards)
what is binomial nomenclature?
method of classification of organisms by genus then species
what are the 7 taxa
kingdom
phylum
class
order
family
genus
species
what evidence is used to make these systems?
fossil records
anatomy
embryonic development
biochemistry
dna
what is a dichotomus keys characteristics?
title
left + right aligned
neumerical order, with a + b
2 choices
1 less paired characteristic than amount of specimens
what are terrestrial plants
live on land
photosynthesise
what are aquatic plants?
live in water
what are nonvascular plants?
no vessels
no roots
no stems
no leaves
ex. moss
what are vascular plants
has roots/veins
collect n transport water
xylem - water transport - 1 direction
phloem - water n food - 2 directions
what are seedless plants
no seeds
vascular
repro using spores
ex. ferns, horsetails
what are seeded plants
angiosperms + gymnosperms
protective outside shell/coating
food source in seed
seed dispersal
gymnosperms
seeded non enclosed
needle like leaves
deciduous
pollinated by leaves
ex. pine trees, evergreens
what are angiosperms
enclosed seeds
require pollinators
finite growing season
ex. grasses, tulips, oaks, dandelions
what are monocots
one seed leaf (cotelydon)
3 leaves
ex. orchids, corn, coconut, dates
what are dicots
two seed leaves
net veins on leaves
flowers have 4-5 parts
ex. trees and ornamental flowers
tulip parts, female or male
pistil - stigma, style, ovary - female
stamen - anther, filament - male
petal attracts pollinators
