Which of these is an example of negative feedback? which of these is an example of negative feedback? the end product of a reaction sequence has no effect on the reaction sequence. the end product of a reaction sequence shuts down the reaction sequence. the first enzyme in a reaction sequence makes the free energy change of the reaction more negative. the end product of a reaction sequence speeds up the reaction sequence. the first enzyme in a reaction sequence lowers the activation energy of the reaction.

This statement is an example of a negative feedback: The first enzyme in a reaction sequence lowers the activation energy of the reaction.

In Biology, negative feedback always results in a reaction that has a decreased function. This type of feedback occurs as a response to a particular kind of stimulus.

Negative feedback is necessary because it lessens the overall output of a particular system; as this continually happens, the system begins to stabilize. In Biology, this is what any organic material always seeks to achieve, a level of stabilization known as homeostasis or equilibrium.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.