What is Grow food? and wat is the answer :)

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry