1. are eubacteria with protective walls that are resistant to heat and cold. a) nitrogen-fixing bacteria b) endospores c) spirilla d) thermophiles 2. how are algae different from plants? a) they do not have roots, stems, or leaves. b) they do not require water to survive. c) they can only live as single cells. d) they cannot get energy from sunlight. 3. what is one way that members of archaebacteria are different from members of eubacteria? a) they are single cells, b) they have different types of cell walls and cell membranes. c) they lack nuclei in their cells. d) they have many cells that do different tasks.
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