What is the the difference between a biotic and an. abiotic factors? a. biotic factors include elements like weather and temperature while abiotic factors produce co, and oxygen. b. biotic factors are living and abiotic fa tors are non living things c. biotic factors in an ecosystem. but abiotic factors do not. d. biotic factors are non-living things and abiotic factors are living things

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.