Answer:
4.26
Explanation:
Let the green-melon parents be Gg, then we expect the cross with the yellow-melon plant gg so as to produce 50% Gg and other 50% of gg offspring. What we observed was that 53 green and a 41 yellow. Based on the total number of 94 offspring , we expected half and a half ratios to be 47 of each color.
Observed(o) Expected(e) (o-e)

Green-melon plant 53 47 6 36 0.766
Yellow-melon plant 41 47 -6 36 0.766
Therefore the chi-square value is 1.53 which is less than the critical value of 3.84. Therefore, the null hypothesis is accepted.
Answer:
B
Explanation:
negative feedback is used to regulate feedback
A volatile acid can leave the solution and enter the atmosphere
Do you need specific sources on this for a paper? I️ would use easybib it is a great source to get bibliographies done quick.
A .Structurally support the cell
B.Store nutrients for the cell to consume
C. Produce ATP to provide energy for the cell
D. Selectively allow some materials into the cell
It would be A
The Cell membrane is like a wall it allows things to pass though regulated.
Hope that helps