When do the light - dependent reactions take place

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.

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

In which of the following relationships is one organism always benefited while the other organism is always harmed