|
Making pearls is an immune system response designed to protect the oyster from a parasite or an injury. |
|
An oyster protects itself from a parasite or an injury by making pearls, which is a response designed by the immune system. |
|
Designed as an immune system response, making pearls protects oysters from a parasite or an injury. |
|
By producing pearls, an oyster gives a response designed to protect its immune system from a parasite or an injury. |
|
An oyster produces pearls to protect itself from a parasite or an injury because it is a response designed by the immune system. |