Transcript Preserving Earth’s Biological Diversity

Organizing Life’s Diversity
Organizing Life’s Diversity
About 1.8 million species of organisms
have been named and described.
 Biologists have created a system for
categorizing organisms, separating them
into groups according to their similarities.

Levels of Classification
Species: a group of organisms whose
members have the same structural traits and
who can interbreed with each other.
 Genus (plural genera): a group of related
species.
 Family: a taxonomic group comprised of
members of similar genera.
 Order: a group of similar families.

Class: a taxonomic group comprised of
members of similar orders.
 Phylum (plural phyla): a major taxonomic
group, lower than the kingdom, comprising
members of similar classes.
 Kingdom: a taxonomic group comprised of
members of similar phyla.

Memorize
Keep - Kingdom
 Pots - Phylum
 Clean - Class
 Or - Order
 Family - Family
 Gets - Genus
 Sick - Species

The Six kingdoms Of Life
Archaebacteria
 Eubacteria
 Protista
 Fungi
 Plantae
 Animalia

Question 1
Which group includes all of the other
groups?
 A. genus.
 B. order.
 C. class.
 D. family.
 E. species.

Question 2
Four of the five answers listed below are
taxonomic categories. Select the exception.
 A. family.
 B. kind.
 C. species.
 D. order.
 E. genus.

Question 3: True/false
. A scientific name consists of a genus
name followed by a species name.
Answers
Question 1: C. class.
 Question 2: B. kind.
 Question 3: True
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