Answer:
The answer would be the last one, he is examining the physical characteristics. Why this is correct is because physical characteristics are visible to the naked eye and therefore everything he stated was just that, including color and shape/design
Explanation:
2nd choice is the correct one
Answer: choice A
Explanation: hope this helps
SORRY IF IM WRONG
eosinophils
They are the type of white blood cells mainly involved in parasitic infections.