Which statement indicates the reason dark-breed boars and white-breed sows are a desirable combination? Dark-breed boars are notable for their special markings, while white-breed sows are notable for their heartiness.
Dark-breed boars are notable for their quality meat, while white-breed sows are notable for their strong fertility.
Dark-breed boars are notable for their toleration of heat, while white-breed sows are notable for their flavorful meat.
Dark-breed boars are notable for their adaptability, while white-breed sows are notable for their calm temperaments.

the answers are a and c

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.