Answer:
Nickel, Ni, atomic number 28
:
Nickel, Ni, atomic number 28 Is a transition metal. It falls in the "d" region. 4 of Period, group 10.
Calcium and magnesium are alkaline earth metals, and antimony is a metal in the nitrogen group.
I would say option A - The reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn.
Explanation:
Firework exploding is a regular chemical reaction chain which ones started does not stop till the chain is complete. The action is rapid and cannot be stopped in the middle as compared to candle burning.
Without variation in traits among the population, there would be no variation in the relative fitness of individuals within the population (i.e. (higher level) no differential reproductive success between individuals). Without varying reproductive success between individuals in population based on traits, there will be no change in frequency of traits in the population over time. To put it simply, there is nothing for natural selection to act upon.
Well the female has xx and male xy so False
Sometimes though there is genetic problems and people have xxy or other things. But it is typically true. Hope that helped :)
