Answer: b. reaction 3
Explanation: When an enzyme is present in a reaction acts as a catalyst, increasing velocity of reaction and decreasing the activation energy, when not present an enzyme the reaction velocity is very low and implies high activation energy, being unfavorable to the system
creatine phosphate is the chemical that helps to regenerate ATP
<span>The average heart rate is the number of heart beats counted in 15 seconds divided by 15 seconds. The instantaneous heart rate is the time it takes for a single heart beat. Since the heart can beat at varying rates, these values are not necessarily the same.</span>
Answer: b. Necton
Explanation:
Necton is the term used to refer to aquatic organisms that are able to swim against the current of the water they are in. For this reason they are called "actively swimming" organisms. Aquatic plants that are unable to move against the current are called Plankton.
Fish, whales and dolphins are able to move against the current and so are classified as Necton. It is worthy of note however, that some organisms are able to transition from Plankton to Necton as they mature.
