Nitrogen is not necessary <span />
Answer:
A
Explanation:
Fertilizations occurs in the fallopian tube.
Point "a" is located where the fallopian tube is at
Hence, fertilization is most likely to occur at point A
The ciliated simple columnar epithelium is a tissue that would line the uterine tubes and function as a conveyor belt to help move a fertilized egg toward the uterus. The ciliated columnar epithelium transfers mucus and constituents through cilia and is originate in the upper respiratory area the fallopian tubes, the uterus, and principal part of the spinal cord. It is the main objective of contamination for common cold illnesses.
My best guess would be c because b makes no since we as humans do not have photosynthesis and are considered living organisims, d is also wrong because the brain requires oxygen, and its not a because the brain is made of cells.
You would expect to find elastic fibers
