The rib cage has 12 pairs of ribs. which cartilage attaches the front ends of the first seven pairs of ribs to the sternum? what is the name of these seven sets of ribs?

The first seven pairs of rib bones (beginning at the top of the sternum) are called "true ribs."  They connect to the spine (by ligaments) at the back, and connect to the sternum by costal cartilage in the front.  Costal cartilage is elastic and allows the ribcage to expand during respiration.

Ithink it would be a and b

1.)dr. natterson- horowitz came to realize that their isn't much of a difference between animals and humans. just like humans, animals can suffer from illnesses and diseases like breast cancer, self injury, anxiety, and many more. she also discovered how they even treated and performed surgical procedures on animals just as if the animal it self were human. the los angeles zoo called dr. natterson- horowitz because they knew that she was a doctor and that  she would be able to recognize what was wrong with the gorilla. they knew that humans and gorillas were similar, so instead of calling another veterinarian, they called a doctor.