Test 1 (Ch. 1-2) Flashcards
study of living things
biology
living things
organisms
regions where particular organisms normally live
habitats
the study of plants
botany
the study of animals
zoology
the study of the physical structure of the human body
human anatomy
the study of the function of the human body
human physiology
About __1__ of the food we eat comes directly from plants. The other __2__ comes from animals that eat plants
- two-thirds
- third
reproductive part of the plant
flower
part of the plant that makes the food
leaf
two types of plants:
woody and herbaceous
any plant with a long, thin stem that either grows along the ground or has tendrils that twine around a support
vine
main root grows straight down and remains larger than the secondary roots that branch off from it
taproot system
primary root remains small and many slender secondary roots grow from it in all directions
fibrous root system
flowering seed plants
angiosperm
plants whose flowers produce seeds covered by fruit
angiosperms
about ______ of plants are angiosperms
half
flowers of the composite family
heads
composite family example
daisy
plant family with square stems and are aromatic
mint family
mint family example
basil
plant family used in foods and seasonings
parsley family
parsley family example
carrot
plant family with an open, five-petal design
rose family
rose family example
strawberry
plant family used to prevent soil erosion
pea family (legumes)
pea family example
peanut
mustard family example
kale
nitrogen compounds (nitrogen and oxygen) that plants can use
nitrates
bacteria, found on the roots of legumes, that converts nitrogen into nitrates
nitrogen-fixing bacteria
provides nitrates to the soil from decomposing plants and animals (ammonia)
nitrifying bacteria
movement of nitrogen from the air into the soil and back into the air
nitrogen cycle
change nitrates into atmospheric nitrogen
denitrifying bacteria
lily family example
tulip
plant family contain the three most common poisonous plants
cashew family
cashew family example
poison ivy
nightshade family example
tomato
stored food for the seed
cotyledon
monocot characteristics
- one cotyledon
- parallel veins
- petals in multiples of 3
- fibrous roots
dicot characteristics
- two cotyledons
- branching veins
- petals in multiples of 4 or 5
considered the most important group of plants on earth
grasses
grass family example
wheat
the three most important cereal crops
wheat, corn, and rice
horizontal stem of a grass plant
stolon
largest plant
tree
trees having broad, flat leaves
broadleaf trees
trees that lose their leaves each fall and are bare all winter
deciduous trees
retain their leaves throughout winter
evergreen trees