Can somebody me with theses questions?

1. The cause of strep throat is bacteria known as Streptococcus pyogenes, also known as group A streptococcus and it is highly contagious.

3. examples of bacteria that makes you sick are E. coli and Streptococcus.

4. The structure called pilus helps bacteria stick to surfaces.

5. Three foods that bacteria helps make are yoghurt, butter, and cheese.

6. "Decompose" means "to make or become rotten; decay".

7. The control center of a bacterial cell is the DNA floating within the cytoplasm.

8.Bacteria moves around in their environment using structures called flagella.

9. Archaebacteria are found in very harsh conditions such as in the volcanic vents or at the bottom of the sea

Explanation:

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.