Out of the options I would have to say Penetrating Keratoplasty, I am not sure
The youngest would be the ones at the top and the oldest would be at the bottom. the oldest is B and the ones around it, as they get bigger get younger. hope this helps :)
Answer:
a helix!
Explanation:
you can also call it a double helix
Answer:
B
Explanation:
organ system is two or more organs working together to perform a specialized function.
House Cat: Felis catus
Mountain Lion: Felis concolor
Domestic dog: Canis lupus familiaris
Human: Homo sapiens
Explanation:
- The cat (Felis catus) is a kind of domestic species of small carnivorous mammal. It is the only domestic species in the family Felidae and is often referred to as the domestic cat to get varied from the wild members of the family.
- The mountain lion's scientific name is Puma concolor,
- The domestic dog is a member of the family with genus Canis (canines), which forms a basic part of the wolf-like canids, and is the most widely abundant terrestrial carnivore.
- Humans belong to a family called Homo sapiens.