why are offspring not genetically identical clones to their parents? What is one source of generic variation? Use this vocabulary: meiosis, random fertilization, cross over, independent assortment, chromosomes ,DNA

5) these are organisms where the genetic material is not bound by a nucleus. they are usually unicellular.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?