The Material in the Gray Crescent of a Frog Embryo

question 15

True/False

The material in the gray crescent of a frog embryo is necessary for normal development.

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Definitions:

Lewis Structures

Illustrations that depict how atoms within a molecule bond together and also visualize any unpaired electrons that might be present.

Covalent

Describing a type of chemical bond formed by the sharing of electrons between atoms.

Ionic

Relating to ions or the chemical bonds formed through the electrical attraction between oppositely charged ions.

Bonding

The attractive force that holds atoms or ions together in a molecule or compound, forming a stable substance.