Natural Selection Science Test

5 fingers of evolution: the thumb

adaptations that are beneficial (natural selection)

5 fingers of evolution: the pointer finger

Movement (Gene flow)

homologous structures

Bone structures that appear similar in species, but have different functions

vestigial structures

A part of your body that was used but no longer needed

embryology

The study of the development and growth of embryos across different species. Name given to an organism before born

DNA evidence

• Deteriorates over time; not permanate

• DNA exists up to 700,000 years 

• Helps to compare species with common ancestors

radiometric dating

Substances go through radioactive decay over time

relative data

Dating a fossil by comparing it to the sedimentary rock

Five fingers of evolution: Middle finger

mutation

5 Fingers Of Evolution: Ring finger

Non-random mating

Five fingers of evolution: little finger

shrinkage in population

Natural Selection

The process by which random evolutionary changes are selected for by nature in a consistent, orderly, non-random way