Biology connects structure, function, energy and change across generations.
Open the source ↗How to study this source
How do biologists explain living systems?
Biology connects structure, function, energy and change across generations.
What would count as evidence of natural selection?
Selection requires variation, heritable differences and differences in reproductive success.
Ideas and questions
Read background definitions when a term blocks the argument. Then return to the source and reconstruct its claim in your own words.