I think its b but that's all I can see that is reasonable but all I can say is I tried
Answer:
I think B because This began a scientific collaboration which helped establish "genetics" at Cambridge
Segmented digestive system, appendages are animal characteristics.
Animals are a major group of organisms, classified as the kingdom Animalia or metozoa. Animals have several characteristics that set them apart from other living things. They are all eukaryotic and usually multicellular, which separates them from bacteria and most protists. Different animals differ in their own characteristics such as appendages, segmentation among other animal characteristics.
Answer:
MULTICELLULAR-means many cells whereas UNICELLULAR means one cell
Explanation: