Answer:
The metric system measures mass in grams or kilograms, distance in meters or kilometers, and volume in liters. It measures temperature in Kelvin or Celsius degrees instead of the Fahrenheit degrees used in the imperial system. The Basic Unit for Mass The metric system measures mass in grams.
<span>The American Academy of Pediatrics recommends that all </span>babies<span> receive </span>vitamin D<span> supplementation (400 IU per day) due to decreased sunlight exposure and an increase in rickets.
Babies need this due to lack of sunlight exposure and is highly recommended if they're breastfed.</span>
Evolution of the atmosphere<span>, </span><span>the development of </span>Earth<span>’s </span>atmosphere<span> across </span>geologic time<span>. The process by which the current atmosphere arose from earlier conditions is complex; however, evidence related to the evolution of Earth’s atmosphere, though indirect, is abundant. Ancient sediments and rocks record past changes in atmospheric composition due to chemical reactions with Earth’s crust and, in particular, to biochemical processes associated with life.</span>
Can also be gained from natural instinct (you are born with instinct)
Explanation:
purines-Double carbon-nitrogen ring with four nitrogen atoms
pyrimidines-Single carbon-nitrogen ring with two nitrogen atoms
