Which statement best describes how reproduction lead to natural selection in a population

Would really appreciate it, i have an idea but not completely sure

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?