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:
1. 20 units
2. 4 units
Explanation:
In an ecosystem, energy is transferred from one organism occupying a trophic level to another as they feed on one another. The amount of energy that is being transferred as the chain progresses is called ECOLOGICAL EFFICIENCY. According to this question, the ecological efficiency at each trophic level of the ecosystem is 20%. This means that about 20% of energy units will be transferred to the next trophic level.
If the green plants of the ecosystem capture 100 units of energy, the amount of energy that will be available to support herbivores (plant eaters) is: 20% × 100units i.e. 20/100 × 100 = 20 units.
Also, the amount of energy that will be available to support carnivores subsequently will be 20% of 20 units i.e. 20/100 × 20 = 4 units.
<span>Observations of organisms include </span>descriptions of the size, number, and arrangement of parts of the organism.
Hope that helped!
El pH normal de la orina es un promedio de alrededor de 6. También puede variar de 5 ~ 9 dependiendo de la dieta de una persona.
