If the cell is green, that would mean that it contains the pigment of chlorophyll (suggesting that it is a plant cell). In addition, a rigid cell wall means the cell is part of a stronger structure, so it is likely a plant cell.
Igneous rock is the answer
Answer:
0.0000000000000000000000000016726 is the mass of proton and 0.000000000000000000000000006749 is the mass of neutron .
Explanation:
Multiply this masses with 9.8 and then add you will get the total weight.
The most likely explanation for the variation is the offspring were produced from different combination of genes. A single pair of gold fish mentioned in the question means a male and a female gold fish. The two of them mated and contributed different genes to the fertilized fish eggs, this results in production of various body shape and colouration which is known as variation.