The physical characteristics of an organism is its phenotype. I remember this because phenotype and physical both start with 'ph.'
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The increase in insulin level following an increase in glucose level in the blood can best be explained by A FEED BACK MECHANISM THAT REGULATE THE BLOOD GLUCOSE LEVEL.
Insulin is an hormone that is secreted by the pancreas and it functions by regulating the amount of glucose that is found in the blood. When the level of glucose in the blood is higher than normal, insulin interfere by converting the excess glucose into glycogen. The glycogen is stored in the liver and in the skeletal muscles and they will only be converted back into glucose, if the level of glucose in the blood is lower than normal.
ATP is broken down into ADP to quickly provide energy. Adding a phosphate group to ADP forms ATP and energy.
What is the second question? If it is in a picture I cannot see it, just comment the question below and I'll see if I can help you :3
The flower mechanism that would not help them preventing pollination by a specie such as a foreign plant would be that the flowers of different species are then the same color and would attract the same pollinators.Hope this would be of help.