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Elements are substances that are made from one type of atom. An element cannot be broken down into any other substance. ... A mixture is made by simply mixing together elements and compounds. No new chemical bonds are formed.
Explanation:
Answer: Option C.
Energy flows in one direction in ecosystem.
Explanation:
In the ecosystem, energy flow in one direction. Energy is transfered from one trophic level to another.
Energy is transfered from producers, majorly plants,convert sunlight to chemical energy during photosynthesis and transfer it to herbivores( goat, sheep ) when they eat plants,the herbivores after using the energy transfer energy to the carnivores when the carnivores feed on the herbivores and to decomposer who feed on dead animals.
In your body<span>, the excretory system helps to keep salts and urea from building up to dangerous levels and becoming toxic. The kidneys are two bean-shaped organs that </span>remove these<span>toxins from your blood and produce urine to carry them from the </span>body.<span> </span>Waste<span> products must be </span>removed from the body<span>. If they are not, they will increase in concentration and may interfere with chemical reactions or damage cells. </span>Waste<span> products that must be </span>removed<span> include carbon dioxide and urea.</span>
Answer:
The correct answer is option C.
Explanation:
The secondary assessment is done after the completion of the primary assessment. During this assessment, the clinician goes through head-to-toe and through step by step to determine what has happened.
This can comprise, and however, is not restricted to inspection, special tests, bony and soft tissue palpation, neurological, and circulation. Repeating the essential components of the secondary assessment while reevaluating the patient mainly signifies focusing on the queries associated with the modifications in the symptoms and repeating the physical exam associated with the particular injuries or complaints of the patient.
Answer:
Scientists usually use the potassium-argon method to date rocks that are older than about 1 million years. Uranium-238 is also used for radiometric dating. It has a half-life of 4.5 billion years. It decays to produce lead-206.
