the presence of a membrane - enclosed nucleus is a characteristic of\nall cells\nprokaryotic…
the presence of a membrane - enclosed nucleus is a characteristic of\nall cells\nprokaryotic cells\nviruses\neukaryotic cells\nquestion 37 (1 point)\nwhich proteobacteria class contains many enteric bacteria like e. coli and salmonella?\nalpha\ngamma\nbeta\ndelta
Answer
Brief Explanations:
- For the first question, prokaryotic cells lack a membrane - enclosed nucleus, viruses are not cells and do not have a nucleus in the cell - like sense, and not all cells have a nucleus (prokaryotes don't). Eukaryotic cells are defined by having a membrane - enclosed nucleus.
- For the second question, many enteric bacteria such as E. coli and Salmonella belong to the Gamma class of Proteobacteria.
Answer:
- D. eukaryotic cells
- B. Gamma