"The heat of fusion for a substance is the energy required to change from the vapor to plasma phase."
This I do belive is the answer to the question.
hope it helps.
Answer: Eggs and produce estrogen
Explanation: Ovaries are part of the female reproductive organ which produces eggs cells female gametes. These kind og gametes produces estrogen a hormone commonly found on females.
C can be the only correct answer - 6.023 x 10^23 is the amount of molecules in a mol of an element. 4.5 x 6.023 x 10^23 can not equal anything but C.
4.5 x 6.023 x 10^23 = 2.71035 x 10^24
It is called the food chain in which it starts out as the sun. the grass uses the sun`s energy then a grass hopper eats the grass and transfers the energy by getting eaten by lets say a frog and gets eaten by a snake and so on and so fourth. The energy the sun produces is Solar energy.