The graph shows, in a period of time between 1978 and 2010. Therefore, it's related to the last 50 years, not the last 100 years, meaning that alternative D is wrong. The amount of sea ice shown in the graph is shown in the scale of million square miles. So, as the graph shows an initial value around 3.2 (3 millions and 2 hundred miles) and it ends up in a value around 2.2 (2 millions and 2 hundred miles), still the real values are around 2.8 (2 million and 8 hundred thousands initially) and 2.0 (2 millions at the end), having a lower value of 1.8 (1 million and 8 hundred thousand); So, in both scenarios, arctic sea ice has shrunk by 1,000,000 (1.0) square miles, being under 2,000,000, not over. Therefore, the highest number to be inside this amount is 2,000, so the correct answer is A: Arctic sea ice has shrunk by over 2,000 square miles in the last 50 years.
Answer:
The most appropriate way of sharing the results is to publish in a scientific journal for peer review. So the answer is 'B'.
Explanation:
In order to validate your results in the scientific community, it is best to publish in a <em>scientific journal</em> and get it peer reviewed. When the article is peer reviewed, other scientists of <em>higher caliber</em> verify your experiment and results and then give their verdict to the outside world.
Newspapers sometimes also <em>publish rumors</em>. So there is no guarantee what gets published is true. the students are still learning and cannot appreciate the full extent of your work.
Answer:
Plant tissue culture is a collection of techniques used to maintain or grow plant cells, tissues or organs under sterile conditions on a nutrient culture medium of known composition. It is widely used to produce clones of a plant in a method known as micropropagation.
Answer:
The preferable option will be - D.
D. CNS and PNS
Explanation:
Multiple Sclerosis is a demyelinating disease affecting axons in the <u>CNS </u>nervous system, in contrast to Guillain Barre Syndrome, which strips the myelin sheath from axons in the <u>PNS</u> nervous system.
- Multiple sclerosis is an inflammatory disease in which our own immune system attacks our own nerve tissues and damages the central nervous system (brain and spinal cord).
- Guillain-Barre syndrome is an autoimmune disease in which our peripheral nervous system (PNS) gets affected.
