Answer: The CELL membrane is semi-permeable
Explanation: Permeability of a Cell membrane is the ability of the membrane to allow the passage of materials through it. In most cases the materials can be minute(small) solutes such as ions like Sodium, Magnesium,casium etc.
Semi-permeable membranes are membranes that selectively allow the passage of certain materials especially based on the size,shape etc of the particles involved,Certain membranes have different pore sizes and shape.
Answer:
Dopamine
Explanation:
The role of dopamine in Parkinson's disease is very important. It is the neurotransmitter that plays a crucial role in a disease called Parkinson. It is the main agent that causes Parkinson's disease. Dopamine is related to our initiation in movement. The patient who suffered from Parkinson's disease has lost dopamine in substance nigra in the brain. The patient lost his coordination between the brain and the muscle movement.
Thus here Mr. Anderson was suffering from Parkinson's disease that causes due to the loss of dopamine.
Answer:
B.
Explanation:
The Space Race is a term used to define the competition between the Soviet Union and the USA, the two Cold War opponents. The competition between the two countries was sought to prove the supremacy of technology, military power, political, and economic power.
The Space Race between the two began with the launch of Sputnik into space by Russia. The Space Race between the two countries ended with the landing of a man on the moon. This historical event was made possible with the landing of American astronauts on 16th July 1969. Thus moon-landing by the USA's NASA ended the Space Race.
Therefore, option B is correct.