Answer:
- Hair on body standing up
- Goosebumps Forming
- Shivering
Explanation:
I think the correct answer would be A. The yolk sac becomes the placenta. It is membranous sac that is attached to the embryo. It provides all the nutrition and the blood cells needed by the embryo. It is also called the umbilical vesicle.
C.
The shape and folded structure of a protein molecule are important in determining its function
Answer:
Thunnas tunas have a common synapomorphic character with scombride fish (2n=48)
