HELP OVERDUE WILL GIVE BRAINLEST Describes a star over the course of many billions of years (lifecycles)?

A star's life cycle is determined by its mass. A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born.

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.