Please Write a Thorough, Well-Organized Essay to Answer Each of the Following

question 67

Essay

Please write a thorough, well-organized essay to answer each of the following questions
-As societies became more complex,it became necessary to devise a means of communication and record -keeping.Describe the various stages that occurred in the invention of writing in Sumer.

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Definitions:

Blastocyst

An early-stage embryo consisting of a sphere of cells surrounding an inner fluid-filled cavity, occurring before implantation into the uterine wall.

Inner Cell Mass

The inner cell mass is a cluster of cells inside the early embryo (blastocyst) that will eventually give rise to the embryo proper and some of the extraembryonic tissues.

Embryo Development

Embryo development is the process by which an embryo forms and develops, involving cell division, and differentiation, leading to the development of tissues and organs of a living organism.

Karyotype

The number, shape, and size of chromosomes in the nucleus of a cell, often displayed in a photograph for analysis.