Answer:
Explanation:
Precision relates to instruments of measurement or scale . A scale measuring upto cm is less precise than an instrument measuring upto mm .
Here the first measurement appears to have been taken with an instrument measuring up to metre and the second measurement appears to have been taken with an instrument measuring up to decimeter . So second measurement is most precise .
Third measurement is closest to the actual measurement that is 45.0 m , so it is most accurate measurement .
A characteristic which helps an animal to live longer will generally tend to become more common in the population because as the animal produces more offspring those traits are passed down to them. Eventually it will be a common characteristic in the population.
Hope that helped :)
Answer:
1st group (or 1A in some tables)
Explanation:
Mass number = number protons + number neutrons
23 = number protons + 12
number protons = 23 - 12= 11, so atomic number is 11.
Sodium (Na) has an atomic number 11.
Sodium is in the 1 group, or 1A group in some Periodic tables.
Answer:
phenylalanine, threonine, tryptophan, and valine. Srry I have these memorized.