Describe the conditions needed in order for any enzyme to function properly.

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.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?