1 phân tử adn có tỉ lệ A:G=3:5 có 150 chu kỳ xoắn xác định số liên kết hoá trị đc hình thành giữa các nu và số liên kết hidro của adn

What is the 77 element on the periodtic table

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.

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f