Question

which reason best explains why bacteria are good at causing infections in other organisms?
it would not be able to divide.

bacteria are transmitted easily and reproduce quickly.

bacteria evolve slowly as they pass on genetic information.

bacteria are easily killed by a host’s immune system or antibiotics.

Explanation:

To determine the best reason why bacteria are good at causing infections, we analyze each option:

• The first option ("It would not be able to divide") is irrelevant to causing infections.
• The second option ("Bacteria are transmitted easily and reproduce quickly") makes sense: easy transmission allows them to spread to hosts, and quick reproduction means they can multiply rapidly in a host, leading to infection.
• The third option ("Bacteria evolve slowly...") is incorrect; bacteria can evolve quickly (e.g., antibiotic resistance), and slow evolution wouldn't support causing infections well.
• The fourth option ("Bacteria are easily killed...") is the opposite of what would help cause infections—if they're easily killed, they'd struggle to infect.

Answer:

B. Bacteria are transmitted easily and reproduce quickly