What is the percentage of the parent isotope remaining after 1 Half Life, assuming you start with 100% of a sample.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f