Answer:
The answer is; Simulation of early Earth conditions and long-term study of the resulting molecules
Explanation:
It is believed that the first molecules on earth were made spontaneously through reaction spurred by energy from lightning and also the heat from the earth. It is believed that these molecules over time then formed polymers through the catalysis by metals in the oceans. These polymers were able to self-replicate and also act as enzymes since they were able to fold up. This hypothesis was coined by Carl Woese, Francis Crick and Leslie Orgel in the 1960s. To prove it, the then conditions of early earth need to be replicated, data collected, and analyzed.
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Answer:
Potassium and Carbon Dioxide
Explanation:
Chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs. These are limited to a single typographic line of symbols, which may include subscripts and superscripts. A chemical formula is not a chemical name, and it contains no words. Although a chemical formula may imply certain simple chemical structures, it is not the same as a full chemical structural formula. Chemical formulas can fully specify the structure of only the simplest of molecules and chemical substances, and are generally more limited in power than are chemical names and structural formulas.
Answer:
Option-D
Explanation:
The network of neurons which gets activated in the condition of stress that is fear or anger is known as Sympathetic nervous system.
During stress conditions, this system prepares the body physically and mentally either to fight or flight by controlling the production of hormones through activation of specific neuron network in the body. Mainly the adrenaline and norepinephrine which act and produces the response like increased heartbeat, sweating and other.
Thus, D)sympathetic is the correct answer.