Answer:
The comparison of the size between groups.
Explanation:
This is like a quasi experimental design, where you need to compare the two groups after you apply the stimulus to the experimental group.
To do this comparison you need to collect the size measurement data, that's when you're gonna support your hypothesis or not. Why size data between groups? Simply because your hypothesis is about larger growing cotton bolls, and that refers to size.
Answer:
The phospholipid bilayer builds the principle structural frame of the plasma membrane of the cell.
Explanation:
The plasma membrane of both plant and animal cell contain phospholipid bilayer in which the head group of the Phospholipid are oriented in opposite direction with respect to each other whereas the fatty acid tails of the two layers faces each other each other in the phospholipid bilayer.
The polar head group is present in the hydrophilic region whereas the non polar fatty acid tails are present in the hydrophobic region.
Beside phospholipid glycolipid,cholesterol and proteins are also present in the phospholipid bilayer.
Glycolipid contain oligosaccharide chain which play an important role in recognisation and binding of various molecules. Membrane proteins helps in the transport of various molecules in and out of the cell.whereas cholesterol regulates membrane fluidity.
Answer:
A. Oxygen
breath in oxygen we exhale carbon dioxide