Nitrofurantoin is antibiotic drug commonly used to treat urinary tract infections in pregnant women because of its safety and effective use (the body quickly filters it out). It is not recommended to be used in late pregnancy due to the potential risk of hemolytic anemia in the newborn.
But, recent studies suggested that there is a possible association between congenital malformations following exposure to nitrofurantoin during the first trimester of pregnancy.
<span>One observation would be the physical size of Russia compared to other countries, despite a lack of visible borders from space. In addition, part of Russia's outline would likely be obscured by the various clouds and objects in the stratosphere; this would allow the astronaut to view potential cloud and weather patterns on earth. Also, an astronaut could see outlines of Russia's geography such as mountain ranges.</span>
Answer:
A major factor in determining the mode of nitrogen excretion is the availability of water in the environment. Generally, aquatic animals excrete mostly ammonia, whereas terrestrial animals excrete either urea or uric acid.
Explanation: