The answer is “d” (1,000 kcal). As the trophic level increases energy is decreases by 10 times that of the previous level. If a system has 10,000 kcal, then the primary consumer have 10 times less (10,000/10) which is 1,000 kcal. The secondary consumers have 100 kcal and the tertiary have 10 kcal. Only 10% of the energy at each trophic level goes on to the next.
Answer:
Concentration
Explanation:
Raoul is concentrated on his work, therefore, he isn't distracted
Answer:
C
Explanation:
R-selection strategy organisms produce many offspring but very few reach the adult stage. This is because they are little parental care after fertilization. An example of an R-strategist organism is fish and mice. K strategist, on the other hand, produces few offspring and give more parental care to them.
The closed economy is a self sufficient economy. The countries following a closed economy system does not involve in the import and export of goods from other nations. In these countries, all the goods are produced in the country is consumed within the country itself.
Brazil is a country, which can be said as closed economy as Brazil imports a very item from other nations. A Complete close economy system is not present in any country yet.
