Which best describes fertilization and meiosis in the life cycle of plants?
i. these processes are part of the life cycle.
ii. these processes produce gametophytes.
iii. fertilization produces a zygote, and meiosis produces haploid spores.
iv. fertilization is used only by seedless plants; meiosis is used only by seed plants.

Apatient is in need of hydration. which type of solution are the patient's cells most likely in?

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.

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.