A Cell Is Characterized by a Cell Membrane and a Single

question 35

True/False

A cell is characterized by a cell membrane and a single nucleus surrounded by cytoplasm containing organelles.

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Definitions:

Gastrulation

An early embryonic phase in animal development during which the single-layered blastula is reorganized into a multilayered structure known as the gastrula.

Morula Stage

An early stage in embryonic development characterized by a solid ball of cells resulting from the division of a fertilized egg.

Human Embryo

A human embryo is an early stage of human development, following fertilization and preceding the fetal stage, during which all major organs and structures begin to form.

Chorion

The outermost membrane surrounding an embryo of a reptile, bird, or mammal (in humans, it contributes to the formation of the placenta).