Chocolate is toxic to dogs because of the levels of caffeine and a certain chemical, called theobromine, which is not good in large quantities to dogs. dogs can have small quantities of chocolate, but it should not be a reoccurring “treat” or snack for dogs. however, if given accidentally, chocolate should not harm a dog, but they may get sick. too much chocolate - which is different for every dog - can be fatal.
Cells are the primary unit of structure in living organisms is correct. A and B are ruled out easily. Cells vary in size. C is also incorrect. Both of us are human,but we have a varying amount of skin cells, blood cells, etc. D is the only correct answer.
An inguinal hernia is a common condition in infancy and childhood, and is the most common surgical operation in childhood. An inguinal hernia occurs when tissue or part of the intestine pushes through a weak spot in the abdominal wall in the groin area, causing a bulge in the groin or scrotum.