Answer:
The prime advantage of using electromagnets in a device is that it can be easily turned on and off.
Explanation:
The formation of electromagnets is done by winding a wire via a magnetic substance and then passing an electric current through it. The durability of the electromagnet relies upon the size of the electric current via the coil and the number of coils.
On the other hand, the regular magnets do not need power, however, it is reliant upon the kind of material that is, used to produce it. Thus, it is advantageous to utilize electromagnets in comparison to permanent magnets as the strength of the electromagnet can be amended easily by monitoring the concentration of current flowing through it. Thus, it is easy to turn off and on any device containing an electromagnet.
Electromagnets can be switched on and off. This is good in a scrap yard because they need to pick heavy pieces of metal and then drop it.
The question refers to various stress reduction techniques which have been shown in research to have numerous benefits for both physical and psychological health. These techniques include exercise (both short and long duration), social support networks, and interventions involving positive psychology.
The subject of the question is referring to various stress reduction techniques. Research has shown that these techniques provide numerous benefits for both physical and psychological health. These techniques cover a wide array, including exercise, social support networks, and positive psychology tactics.
Exercise, both of long and short duration, has been proven to be beneficial for physical and mental health (Salmon, 2001). It is found that physically fit individuals are more resistant to the adverse effects of stress and recover more quickly.
Social support networks too have favorable impacts on health outcomes. They offer several beneficial physiological effects in stressful situations and lead to better health behaviors.
Lastly, interventions involving positive psychology, such as documenting three good things that happened each day, also led to an enduring increase in happiness and reduced stress (Seligman et al., 2005).
Mental health therapies often utilize a combination of these techniques to enhance the psychological and physical well-being of individuals.
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B) consumption
C) commensalism
D) parasitism
E) mutualism
Answer:
C) commensalism
Explanation:
because commensalism is that type of biological interaction in which members of one specie are getting benefit while the other members of other specie are not getting any benefit nor harm.
saprotrophs or saprophyte
A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals. They are consumers in the food chain.Bacteria and fungi are important saprotrophs.
Answer: Saprophyte is the organism obtains its energy from dead or decaying matter
Explanation: Saprophytes don't have chlorophyll and therefore, cannot prepare their food. They obtain nutrients from dead and decaying matter. Digestive juices secrete by the saprophyte on dead and decaying matter and convert it into a solution. They then absorb the nutrients from it. These enzymes convert organic food substance into a simple one.