An indicator species<span> is an organism whose presence, absence or abundance reflects a specific environmental condition. </span>Indicator species<span> can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem.
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Viruses need to be inside a living thing (of course the living thing has to have the right temperature which most living things do) . When they're inside a living thing they start injecting the host's cells with its DNA in order to make more copies of itself which allows the virus to spread. So basically viruses need to be inside something living.
Answer:
d. paraffin
Explanation:
Paraffin has low thermal conductivity, a high heat capacity, and is insoluble in water.
Biotic= living like trees, animals,
Copper bracelets and magnetic wristbands are used relieve pain in people with arthritis. Studies conducted on these devices show that they have no efficacy on pain or on stiffness, two of the most characteristic symptoms of arthritis. Although there is no medical data to support the efficacy of the copper bracelet, the patient is not harmed or endangered by wearing it. Therefore, the nurse should respect the fact that the patient is feeling better, but he/she should urge the patient to continue with its prescribed medication.
