Classification And Evolution Flashcards
What is the system used for classifying living things known as?
The natural classification system.
What are the biggest groups?
Kingdoms.
What are the similarities in the animal kingdom?
All move their their whole body about and their cells do not have cell walls.
What is the smallest group?
Species.
What is a species?
A group of organisms that can breed together and produce fertile offspring.
How are evolutionary trees built up?
They look at the similarities and differences between different groups of organisms.
How do scientists work out the evolutionary relationships between organisms?
They look at DNA evidence to look for similarities as well as differences.
Why do we classify organisms?
It helps us to understand how they evolved.