Answer:
85% of the the U.S. population has Rh+ blood
Explanation:
Out of the total population of USA, nearly 15% of the individuals are having Rh negative blood.
The remaining population has Rh positive blood which is equal to 100-15%
or 85%.
Thus, 85% of the the U.S. population has Rh+ blood
Protons are positively charged (+) and neutrons have no charge
A food chain is a succession of organisms that eat other organisms and are being eaten by other organisms occupying different levels called the trophic levels. The first trophic level is occupied by the producers which include the plants, the second level includes the herbivores, the third level and subsequent levels represent the carnivores. The plants are called the producers since they can prepare their own food and the other organisms dependening on them are called the consumers.
According to the Ten percent law of energy transfer, only ten percent of the energy is transferred to each trophic level and the remaining is lost during the transfer. If the producers have 3000 calories of energy, the primary consumers obtain 300 calories from them. The secondary producers and tertiary consumers obtain 30 calories and 3 calories only.
Protein has 4 calories per gram. Since this glass of chocolate milk has 8 grams of protein, it has 32 (4*8) calories which originate from protein. Given that the total amount calories contained in this glass are 160, the percentage of calories coming from protein is (100*32)/160 = 20%.
