The right answer is: an elderly person.
Food poisoning makes people sick at any age, but among seniors, whose immune systems are more vulnerable and weaker, the consequences can be dramatic. That's why caring for an elderly person at home is a good way to make sure they eat healthy and safe.
Answer:
Many algae consist of only one cell, while the largest have millions of cells. In large, macroscopic algae, groups of cells are specialized for specific functions, such as anchorage, transport, photosynthesis, and reproduction; such specialization indicates a measure of complexity and evolutionary advancement.