Put the steps of the process of signal transduction in the order they occur. a conformational change in the signal-receptor complex activates an enzyme. protein kinases are activated. a signal molecule binds to a receptor. target proteins are phosphorylated. second messenger molecules are released.

Signal transduction can be defined as the process in which a physical or chemical signal is transmitted through a cell as a series of molecular events inform of protein phosphorylation are catalyzed by protein kinase and this ultimately result into a cellular response. However, the protein that is responsible for the detection of stimuli is commonly refers to as receptors or sensor.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.