Respuesta :
					                   Hello  Lillyandkatelyn
Answer: Excretion is the only effective way invertebrates fight disease.
Reason: Invertebrates only have the capacity to excrete and cleanse their body of harmful materials and germs.
Hope This Helps
-Chris
					                
					                
					             Answer: Excretion is the only effective way invertebrates fight disease.
Reason: Invertebrates only have the capacity to excrete and cleanse their body of harmful materials and germs.
Hope This Helps
-Chris
