Which of the following were once bacteria? (select all that apply)  a) mitochondria b) chloroplasts c) nuclei d) golgi apparatus e) endoplasmic reticulum

Bacteria, Archaea, and Eukarya are three _____.

A typical prokaryotic cell ________ compared to a eukaryotic cell. a. is smaller in size by a factor of 100 b. is similar in size c. is smaller in size by a factor of one million d. is larger in size by a factor of 10

Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell wall formed from peptidoglycan. b. Gram-positive bacteria have an outer membrane. c. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. d. Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.