Facial expressions, body movement and posture, gestures, eye contact, touch, space, and voice.
Answer:
Sphingolipids
Explanation:
They are derived from aliphatic amino alcohol sphingosine and functions in protecting the nerves in the central nervous system. Sphingolipids includes group of lipids called glycolipids and sphingomyelin. Just like phospholipids they have polar heads and two non-polar tails together with proteins, forms a myelin sheath. They insulate the nerves and causes quick transmission of electrical impulse amongst organs contributing to normal bodily functions.
Ans.
Cell differentiation is defined as a process, by which less specialized cells, such as embryonic cells become more specialized. The process of cell differentiation is regulated by gene expression. Gene expression involves a specific group of genes that are turned on (expressed) or turn off (repressed) and dictates a cell's function.
A fertilized egg represents a single, non-specialized cell that develops into a complex, multicellular organism by cell differentiation. Thus, a adult rabbit looks so much different as compared to a single fertilized cell or zygote, due to cell differentiation, which is regulated by gene expression.
Look it up if you are stressing.