How do scientists know that evolution takes place?

Choose all relevant answers.

Question $9$ options:

by observing organisms in the wild and seeing what traits they use and might improve.

just knowing everything and writing it down; can't get credit unless you publish!

comparing the DNA sequences of organisms; the more similar the DNA the more closely related organisms are to one another

studying embryology and development which can show homologous structures not seen in adult forms$$

studying and mapping the geographic distribution of extinct and extant species as well as fossils

by looking at the fossil record and making a timeline of different organisms found in Earth's history

only the strongest and best organisms survive by changing their DNA