D is not right.............
2. a bacterium
A. Capsule
B. Cell Wall or Cytoplasmic membrane
C. Ribosomes
D. Pili
E. Nucleiod
F. Flagella
3. C. coccus (circular shape)
Answer:Beginning with energy sources obtained from their environment in the form of sunlight and organic food molecules, eukaryotic cells make energy-rich molecules like ATP and NADH via energy pathways including photosynthesis, glycolysis, the citric acid cycle, and oxidative phosphorylation.
Explanation:
Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.
Answer: adenine, thymine, guanine and cytosine
Explanation: Adenine always binds with thymine, and cytosine always binds with guanine.