Answer:
1.
- B
- A
- true
2.
- 3 sugar
- 5 sugar
Explanation:
this is what I think so don’t get mad if it’s wrong
Answer:
Blood vessel, a vessel in the human or animal body in which blood circulates. The vessels that carry blood away from the heart are called arteries, and their very small branches are arterioles. Very small branches that collect the blood from the various organs and parts are called venules, and they unite to form veins, which return the blood to the heart. Capillaries are minute thin-walled vessels that connect the arterioles and venules; it is through the capillaries that nutrients and wastes are exchanged between the blood and body tissues.
Explanation:
Red blood cells will swell and burst.
The reason behind this is that red blood cells are okay when they are in the plasma (the watery part of the blood) because the solutes in plasma are so well balanced that plasma is rendered isotonic. An isotonic solution is a type of solution that has the same salt concentration as its surrounding environment and thus the substances around it e.g. cells neither gain nor lose water. In the blood plasma, the red blood cells neither lose nor gain water and so they remain intact.
However distilled water is hypotonic (has less or no solutes) and therefore osmosis will take place when red blood cell which have a higher solute concentration are placed in it. Water molecules will leave the distilled water and pass into the red blood cells through the semi-permeable membrane of the cells in an attempt to equalize the difference in osmotic pressure on either side of the membrane. In so doing, water will accumulate in the cell which will then swell to capacity and ultimately burst.
Answer:
Option C. Peripheral nervous system
Explanation:
The Parkinson's disease is a disorder that directly affects the nerve cells of the body. The neurons that produces dopamine dies in this disorder that produces symptoms like slowness, balancing problem and stiffness.
The Peripheral nervous system connects the CNS to body limbs and organs. The information is transferred from the brain and spinal cord to other body parts that helps to react with external stimulus.
In Parkinson's disease, the transfer of motor signals to muscles is prevented by inhibiting parts of peripheral nervous system. Thus, option C is correct.
Answer:
Culture help shaped the medical and lifestyle of a people living in the community. It also helped create machinery to lessen the work load of people. Science helps create changes and improves the life of the people living in the community. Science was able to help lower the death rate in nomadic times, they created medicine, introduce agriculture and more.
Explanation:
