What is the phase were the chromosomes line up exactly across from each other almost touching
-pro phase1
-telephase 2
-metephase 2

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

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.

Why do we perceive objects as retaining their brightness under different lighting levels?