Examlex
Which of the following identifies a group of RNA viruses?
Fetus
The stage of development in mammals following the embryonic stage, characterized by rapid growth and maturation of organs and systems.
Development
The process through which living organisms grow and become more complex, involving physical, biological, and sometimes psychological changes.
Human Blastocyst
A stage of human embryonic development that occurs approximately 5 to 9 days post-fertilization, characterized by a sphere of cells enclosing a fluid-filled cavity and the inner cell mass that will develop into the embryo.
Gastrula
An early stage in embryonic development where the embryo consists of layers of cells (ectoderm, mesoderm, and endoderm) that will develop into different organs and tissues.
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