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7th grade 2023-2024
Science 7
Taxonomy
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Taxonomy/Evolution Review Sheet
7th grade 2023-2024 > Science 7 > Taxonomy
40 cards
Cards (116)
Classification
The process of grouping things according to similar characteristics
Places/things organized to help people find what they need
Libraries
Digital files
Grocery
stores
Biologists use
classification
To
organize
living things into groups so that they are easier to
study
Taxonomy
The study of classification
If you know a
shark
is classified as a
fish
, you know it
lives
in
water
and has
gills
Carolus Linnaeus (Karl Von Linné)
A Swedish naturalist who in the 1750s devised a system of naming organisms that is still used today
Binomial nomenclature
The system where each organism gets a two-part name
Scientific names
Have two parts:
Genus
+
Species
Rules for scientific names
Must be written in
Latin
Genus name begins with a
capital
letter, species name is all
lowercase
Scientific names
Homo sapiens
Felis domesticus
Limulus polyphemus
Megaptera novaeangliae
Classification groups of plants
Nonvascular
Vascular
Seedless
Seeds
Ferns
Gymnosperms
Angiosperms
Advantages of scientific names
They are
universal
, so scientists worldwide can identify an organism by the same name
They eliminate
confusion
over common names
We will be focusing on plants that
reproduce
using
flowers
Taxa
Groups or sub-groups that organisms are classified into
Angiosperms
The
organs
of
sexual reproduction
in
plants
that are
called flowers
Order of 8 taxa from largest to smallest
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Stamen
The
male
part of a flower
Has a
thread-like
filament and a
knob-like anther
The
anther
makes
pollen grains
which are the
sperm cells
of a plant
As the number of organisms
decreases
, the similarities between them
increase
Pistil
The
female
part of a
flower
Located in the
center
of the flower, inside the circle of
stamens
The lower part of the pistil is the
ovary
, which contains one or more
ovules
with
egg
cells
Fertilization of an egg by a
pollen grain
takes place in the
ovule
Pollination
Transfer of pollen from stamen to pistil
Chordates have a
backbone
Life Science
7
__________
Kingdom ANIMALIA
Animal Classification-
two major groups:
Homo sapiens and Ursus americanus are related up to the order
Carnivora
Self-pollination
Pollen from a flower's own stamen fertilizes the
pistil
of that same flower
Cross-pollination
Pollen from one flower fertilizes the
pistil
of a different flower
Two major groups of animals
Vertebrates
Invertebrates
Vertebrates
Animals that have
backbones
Invertebrates
Animals
without backbones
8 categories to narrow down the location of a person
Planet
Domain
Continent
Kingdom
Country
State
City
/
Town
/
Village
Address
Seed plant reproduction
1.
Pollination
2.
Fertilization
3.
Ovule
becomes a
seed
Prokaryotes
Simple cells without a nucleus
Angiosperms
Produce seeds that are surrounded by fruit
Invertebrate Phyla (7)
PORIFERA
CNIDARIA
PLATYHELMINTHES
(flatworms)
ANNELIDA
MOLLUSCA
ECHINODERMATA
ARTHROPODA
Eukaryotes
Complex cells
with a
nucleus
Animals that eat fruit help
disperse
the seeds
PORIFERA
Invertebrates
with
pores
Imperfect flower
A flower that has only pistils or stamens
Autotrophs
Producers
that
can manufacture
their own
food
PORIFERA
sponges
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