The cells of the innate system recognize and respond to pathogens in a generic way, but, unlike the adaptive immune system (which is found only in vertebrates), it does not confer long-lasting or protective immunity to the host.ll white blood cells (WBC) are known as leukocytes. Leukocytes are different from other cells of the body in that they are not tightly associated with a particular organ or tissue; thus, they function similar to independent, single-cell organisms.
Ideally, the age to bring home a puppy is when heâs between seven and twelve weeks old. This is considered the critical socialization period in a puppyâs life, the time when he learns the most about his environment and begins to adjust to his surroundings.
Views: 56682. Puppies gradually wean off their mother's milk at around 8-12 weeks of age. By this time they are ready to eat puppy food and will be spending most of their time away from their mother, playing, eating and sleeping.RSPCA Australia considers the minimum acceptable age for a puppy to be removed from the mother dog for adoption or purchase to be 8 weeks of age.Waiting until the puppy is at least 8 weeks of age will help to ensure that the puppy has received an adequate supply of milk from the mother dog.y this time they are ready to eat puppy food and will be spending most of their time away from their mother, playing, eating and sleeping. RSPCA Australia considers the minimum acceptable age for a puppy to be removed from the mother dog for adoption or purchase to be 8 weeks of age.