<span>The skull protects the brain and the vertebrae protects the spinal cord. The brain and spinal cord are wrapped in three layers of connective tissue called meninges. Between the meninges and the central nervous system tissue is a space filled withcerebrospinal fluid.</span>
Answer:
English:
RNA and DNA are polymers made up of long chains of nucleotides . A nucleotide is made up of a sugar molecule (ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).
Spanish:
El ARN y el ADN son polímeros formados por largas cadenas de nucleótidos. Un nucleótido está formado por una molécula de azúcar (ribosa en el ARN o desoxirribosa en el ADN) unido a un grupo fosfato y una base nitrogenada. Las bases utilizadas en el ADN son la adenina (A), citosina (C), guanina (G) y timina (T).
Answer:
The human brain is divided in to two parts and that is why human brain is responsible for controlling behavior of human and motor control . The sheep have only one portion. Compared to the sheep, the human olfactory bulb is larger in size while the stem on the sheep is larger than human. The cerebellum in the human brain is larger and more secure than the sheep.
The replication happens during the S phase.
They are called transmission electron microscopes.
