Explanation:
mosquito- when bit it pierces the skin using a special mouthpart (proboscis) to suck up blood. As the mosquito is feeding, it injects saliva into your skin. Your body reacts to the saliva resulting in a bump and itching.
wasp- are equipped with a stinger for self-defense. A wasp’s stinger contains venom (a poisonous substance) that’s transmitted to humans during a sting
