Answer;
The important role of experience in wiring the brain
Explanation;
-Brain development involves creating, strengthening, and discarding connections among the neurons; these connections are called synapses.
-These synapses organize the brain by forming pathways that connect the parts of the brain governing what we do.
-At birth the synapses present are those governing our bodily functions such as heart rate, breathing, eating, and sleeping.
Chickens have 78 chromosomes.
A) sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers.
Answer: Sickle-cell disease
Explanation:
Sickle-cell disease is characterized by the presence of a sickle shaped red blood cell, due to the substitution of glutamate with valine in the amino acid sequence of the protein globin portion.
Hence, the sickled shaped globin is unable to transport oxygen efficiently to body tissues, resulting in malfunction of the red blood cell.