A quick Google search revealed that Andrew Johnson was the 17th president of the United States.
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During protein synthesis,
introns are removed.
and
exons are joined.
So, B.
The Sun is the primary source of energy for Earth's climate system is the first of seven Essential Principles of Climate Sciences.
Principle 1 sets the stage for understanding Earth's climate system and energy balances.
The Sun warms the planet, drives the hydrologic cycle, and makes life on Earth possible.
It was the type of diversity that had to do with the niche depending on which niche you are is the amount of varaiaton in your gene pool