Many insects can communicate with each other through their _______.
A. mandible
B. pharynx
C. pheromones
D. thorax

Which of the following is NOT a mammal?
A. Bat
B. Dolphin
C. Frog
D. Rabbit

Which of the following correctly explains how the body fights diseases?
A. When a pathogen enters the body, a person must get a vaccine to activate mucous production, which traps the pathogen and destroys it.
B. When a pathogen enters the body, the endocrine system produces hormones that detect the pathogen and destroy it.
C. When a pathogen enters the body, the immune system produces antibodies that identify and kill the pathogen.
D. When a pathogen enters the body, red blood cells attach to the outside of the pathogen and carry it to the immune system, where it will be destroyed by white blood cells.

Question

Many insects can communicate with each other through their _______.
	A.	mandible
	B.	pharynx
	C.	pheromones
	D.	thorax
 
Which of the following is NOT a mammal?
	A.	Bat
	B.	Dolphin
	C.	Frog
	D.	Rabbit

Which of the following correctly explains how the body fights diseases?
	A.	When a pathogen enters the body, a person must get a vaccine to activate mucous production, which traps the pathogen and destroys it.
	B.	When a pathogen enters the body, the endocrine system produces hormones that detect the pathogen and destroy it.
	C.	When a pathogen enters the body, the immune system produces antibodies that identify and kill the pathogen.
	D.	When a pathogen enters the body, red blood cells attach to the outside of the pathogen and carry it to the immune system, where it will be destroyed by white blood cells.

anonymous · Answer

Through their pheromones

anonymous · Answer

2:Frogs ain't mammal..
3:When a pathogen enters the body, the immune system produces antibodies that identify and kill the pathogen.

anonymous · Answer

http://www.thebody.com/content/art2499.html This site will help you in understanding Immune system..