Imagine that you are walking in the woods for fun and all of a sudden you see amountain lion. Your hair stands up, you begin to sweat and your heart beataccelerates as you prepare to run away. What fueled the energy for the run? a. The binding of epinephrine to tyrosine kinase receptors and consequent initiation of a response that leads to muscle contraction that allows you to run
b. The activation of a G-protein receptor that leads to the secretion of a protein that makes you run.
c. The binding of epinephrine to a G-protein coupled receptor with the subsequent activation of a nuclear receptor.
d. The initiation of a signaling mechanism that leads to breakdown of glycogen into glucose that can then serve as the fuel for ATP production.
e. All of the above

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Earth is tilted on its axis. which of these would not exist if earth had no tilt?

S, tall stems (t) is a dominant trait while short stems (t) is a recessive trait. in a field of 1000 sunflowers, 820 are tall plants and 180 are short. which statement best describes the genotype of the sunflowers in the field?