Answer: A. Does the wave require a medium to travel.
Explanation:
Mechanical waves require the presence of a material object to be able to engage in energy transfer. For example, Sound is a mechanical wave that needs a medium to travel such as a solid or liquid.
Electromagnetic waves on the other hand, are able to travel through a Vacuum including that of space and they include all light waves. This is why the sun's light is capable of reaching Earth.
False, pernicious anemia may take up to 5 years to show symptoms. However, the oxygen starts to get depleted within the first 6 months in thalassemia major.
Pernicious anemia:
In this condition, the body is unable to absorb vitamin B12 which leads to lowered amount of red blood cells which are responsible for carrying oxygen throughout the body. It is an autoimmune disease in which antibodies attack their own cells in the lining of the stomach which affects the absorption of vitamin B12. The symptoms of pernicious anemia are dizziness, fatigue, diarrhea, constipation, breathlessness, and loss of appetite. The depletion of oxygen is seen in thalassemia major within 6 months.
Learn more about pernicious anemia here,
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Answer:
2 decomposer or 3 producer
Explanation:i kinda forgot lol
1. B
2. B
3. C
Hope i Helped!
chaos theory was developed to analyse many nature’s complex phenomena that seem to defy prediction. In chaotic systems, small perturbations can have large and seemingly unpredictable effects. There is the famous example of a butterfly’s flapping wings influencing the weather thousands of miles away.
it can be applied to ecosystems. Empirical dynamic modeling, which is based on chaos theory, uses sea surface temperature to help predict salmon population fluctuations.
