Classification Flashcards
0
Q
What are artificial classification systems based on?
A
Appearance, used to identify organisms
1
Q
What is natural classification based on?
A
Evolutionary relationships and genetic similarities between organisms
2
Q
What are the names of the groups kingdoms are divided into?
A
Kingdom, phylum, class, order, family, genus, species
3
Q
What is a genus?
A
A group of closely related species
4
Q
What is a species?
A
Group of closely related organisms that can interbreed to produce fertile offspring
5
Q
Why do classification systems change over time?
A
Scientists learn more, discover new species, find new fossils, improvements in DNA sequencing
6
Q
What does an evolutionary tree show?
A
How closely related species are to each other?
Check tree diagram! p.74
