Complete the following sentence. If the length of an activity is greater than 150 seconds, the energy system is predominately used. ATP/PC Intercellular phosphate Anaerobic glycolysis

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.