Font size
WorksheetsEvolutionary History and Relationships Vocab
Total questions: 18
Worksheet time: 9mins
What is common ancestry?
When a species no longer exists
When organisms are descended from a single ancestor
Consider the evolutionary tree. Which is the best description of the two organisms highlighted in pink?
They are separated by two nodes.
They share a recent common ancestor.
They belong to the same species.
They are ancestors of each other.
A (a) tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.
A (a) is a branching diagram showing shared adaptations from a common ancestor between a numbers of species. Scientists consider this diagram a hypothesis.
(a) traits are developed from a common ancestor. They are traits shared between multiple species, such as the bones in a human arm and that of a whale’s fin.
The (a) record is a group of geologically preserved specimen, which has been analyzed and arranged chronologically and in taxonomic order.
when organisms are descended from a single ancestor
anatomy
common ancestry
evolve
evolutionary history
when organisms are descended from a single ancestor
anatomy
common ancestry
evolve
evolutionary history
the sequence of heritable changes that occurred among species since the origin of life on Earth
anatomy
common ancestry
evolve
evolutionary history
A related organism from a previous generation.
Descendant
Common ancestor population
Ancestor
Descendant species
The process by which species adapt to environmental changes over a very long time
Natural selection
Environment
Generation
Evolution
