Draw a venn diagram between combustion and breathing

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

Which of the following would involve looking at different structures of organisms and comparing how similar they are? a. vestigial structuresb. radiometric datingc. homologous structures