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Chapter 1 Classification
Unit A Life Science Chapter 1 Classification
23
Science
6th Grade
09/20/2012

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Term
biosphere
Definition
the part of the Earth than can support living things
Term
adaptation
Definition
a characteristic that enables an organism to survive and reproduce in its environment
Term
species
Definition
a group of very similar organisms whose members can mate with one another and produce offspring that are able to produce offspring
Term
classification
Definition
the grouping of things according to their similarities
Term
bacteria
Definition
single-celled organisms that do not have a nucleus
Term
fungi
Definition
mostly many-celled organisms that often grow in moist, dark places
Term
vascular plant
*trees, bushes, plants
Definition
plants that have cells that form tubes for carrying water and nutrients throughout the plants
Term
nonvascular plant
*moss
Definition
plants that do not have tubes to carry materials (instead materials must pass slowly from one cell to another)
Term
kingdom
phylum
class
order
family
genus
species
Definition
Name the six (seven) levels of classification.
Term
archaebacteria
eubacteria
protists
fungi
plants
animals
Definition
Name the six kingdoms.
Term
nonvascular
vascular
Definition
Name the two main classifications of plants.
Term
gymnosperms
angiosperms
Definition
Name the two groups of seed plants.
Term
seedless
see
Definition
Name the two groups of vascular plants.
Term
It makes it easier to study them.
Definition
Why do scientists classify organisms?
Term
cnidarians
mollusks
segmented worms
arthropod
echinoderms
chordates
Definition
Name the six groups in the animal phyla.
Term
*multicellular
*cannot make their own food
*get food by eating other organisms
*cells contain a nucleus but do not have a cell wall
Definition
Name four characteristics of animals.
Term
corals like sea fans
jellyfish
anemones
*single body opening that is usually surrounded by a ring of stinging celss
Definition
Give examples of Cnidarians and a characteristic.
Term
clams
squid
octopuses
snails
slugs
*soft bodies and most have hard shells
Definition
Give examples of mollusks and a characteristic.
Term
peacock worms
earthworm
leeches
*
Definition
Give examples of segmented worms and a characteristic.
Term
spiders
crabs
millipedes
centipedes
*jointed appendages and hard skeletons on the outside of their bodies
Definition
Give examples of arthropods and a characteristic.
Term
sea stars
sea lilies
sea urchins
sea cucumbers
*a unique five-part balanced arrangement of parts, skeletons made of hard calcium plates inside their bodies
Definition
Give examples of echinoderms and a characteristic.
Term
gorilla
mammals
reptiles
*vertebrates are one kind of animal in the Chordate phylum; spinal cord and brain
*
Definition
Give examples of chordates and a characteristic.
Term
archaebacteria
*can live in hot springs and salty water
eubacteria
*can cause disease, but are in yogurt and cheese
protists
*formed much of the gas and oil we have; food for whales
fungi
*used to make foods and medicines such as penicillin; some cause human diseases like athlete's foot
plants
*have roots, stems, and leaves; trap the Sun's energy to produce glucose
animals
*get energy by eating other organisms
Definition
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