Which of the following provides evidence that all living things share common ancestors? 1.Fossil record
2.Analogous Structures
3.Homologous Structures
4.Similarities in DNA sequences

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.