The vertebrae form a column with a cavity called the vertebral canal.
A part of the central nervous system, the spinal cord is located inside this canal, so this canal is often called the spinal canal. Trough the openings in the canal the spinal nerves go to different parts of the body that they innervate.
Solution:
The four main types of macromolecules found in living organisms, are as follows:
• Proteins.
• Carbohydrates.
• Lipids.
• Nucleic Acids.
Macromolecules are large, complex molecules. It is the product of many smaller molecular units. It is also known as Polymer
Thus the required answer is proteins, carbohydrate, lipids, and nuclear acids.
Its d but not 100 percent sure
Answer:
More than one gene is controlling the loss train of that eye. Thus, the Cross among the scarlet and grey species, F1 crossover has fractional eyes. Despite the fact that both sort of cavern fishes are visually impaired, yet cross between them has brought about offspring with fractional eyes. This shows multi-gene legacy for eye misfortune attribute. Blending of two genotypes has brought about incomplete characteristic in the descendants.