Toward the End of the Proterozoic Eon,multicellular Animals Emerged

question 2

Multiple Choice

Toward the end of the Proterozoic eon,multicellular animals emerged.The first animals were

• A)Fish.
• B)Reptiles.
• C)Invertebrates.
• D)Chordates.
• E)Tetrapods.

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Definitions:

Horizontal Bar

A variant of a bar chart where bars are plotted horizontally instead of vertically, often used to compare quantities.

Vertical Bar

A symbol (|) used in computing and typography as a separator between items or concepts, also known as a pipe.

Title Bar

The horizontal bar at the top of a window on a computer screen, displaying the name of the program or document being used or viewed.

Window Borders

The edges of a window on a computer's graphical user interface (GUI) that can often be resized by the user.