Answer;
B) Neurons, epithelial cells
Explanation;
-Primary lateral sclerosis (PLS) is a rare neuromuscular disease with slowly progressive weakness in voluntary muscle movement. PLS belongs to a group of disorders known as motor neuron diseases. PLS affects the upper motor neurons (also called corticospinal neurons) in the arms, legs, and face.
-It occurs when nerve cells in the motor regions of the cerebral cortex (the thin layer of cells covering the brain which is responsible for most higher level mental functions) gradually degenerate, causing movements to be slow and effortful. The disorder often affects the legs first, followed by the body, trunk, arms and hands, and, finally the bulbar muscles (muscles that control speech, swallowing, and chewing).
Observable traits- phenotype
the second one is recessive. good luck!
Answer:
From the 5 basic strategic approaches used by businesses to protrude, stand out and compete, the company applied the one called: <em>"Focused Differentiation Strategy"</em>, which calls for offering customized and unique features that meet the demands and needs of a narrow market, to win such market or to get a competitive advantage.
<span>The principle that recessive genes will always be masked by dominant genes is Mendel's principle of Dominance. Alleles are different forms of genes and they can be dominant or recessive. According to Mendel's principle of dominance, dominant alleles mask the effects of recessive alleles. </span>
False
Cryosphere can be defined as the portion of the earth’s where the water is in its solid form which includes lake ice, snow, ice caps, sea ice. Thus, cryosphere form an integral part of the global climate system and it overlap with the hydrosphere. Furthermore, the snow or ice areas are subjected to temperature below 320F for at least part of the year.
