Answer:
Try to think those who are made from amino acid... melatonina it is a tryptophan precursor, norepinephrine comes from tyrosine, epinephrine also comes from tyrosine and phenylalanine, the thyroid hormone comes from tyrosine too, but the TSH is derivated from TRH. Last option is not an amino acid derivative.
Explanation:
It’s the process of detecting a change of a objects position relative to its surroundings
Cloned material have the same genetic make up because they are formed after one egg cell is fertilized but spilts to form embryos.
Answer: 1.85M
Explanation:
Sodium hydroxide has a chemical formula of NaOH
Given that,
Amount of moles of NaOH (n) = ?
Mass of NaOH in grams = 63g
For molar mass of NaOH, use the molar masses:
Sodium, Na = 23g;
Oxygen, O = 16g;
Hydrogen, H = 1g
NaOH = (23g + 16g + 1g)
= 40g/mol
Since, amount of moles = mass in grams / molar mass
n = 63g / 40.0g/mol
n = 1.575 mole
Volume of NaOH solution (v) = 850mL
[Convert 850mL to liters
If 1000mL = 1L
850mL = 850/1000 = 0.85L]
Concentration of NaOH solution (c) = ?
Since concentration (c) is obtained by dividing the amount of solute dissolved by the volume of solvent, hence
c = n / v
c = 1.575 mole / 0.85L
c = 1.85M [1.85M is the concentration in moles per litres which is also known as molarity]
Thus, the molarity of the solution is 1.85M