Natural selection merged with the work of in the 20th century to open up our understanding of evolutionary theory. a. Alfred Russel Wallace b. Gregor Mendel c. Jean-Baptiste Lamarck d. Erasmus Darwin e. Charles Lyell

The correct answer is B) Gregor Mendel.

Explanation:

Gregor Johann Mendel was an 18th-century Genetic Scientist whose works, although revolutionary, didn't come to scientific limelight until the 20th century.

He was famous for his experiment with the Pea Plant. Through his experiments, he brought to record many of the rules of heredity also called the laws Mendelian inheritance.

Mendel died in 1884 aged 61, however, his work serves as the foundation for modern-day genetic science.

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the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…

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.