The Order-Of-Magnitude of the Diameter of the Nucleus Is Closest

question 67

Multiple Choice

The order-of-magnitude of the diameter of the nucleus is closest to

• A)10^-6 m
• B)10^-8 m
• C)10^-10 m
• D)10^-12 m
• E)10^-15 m

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Definitions:

Bilateral Symmetry

A body plan in which there are two symmetrical halves of the body, with a distinct left and right, matching one another.

Radial Symmetry

A body plan in which body parts are arranged around a central axis, characteristic of many invertebrates like jellyfish and sea urchins.

Deuterostomes

A major group of animals in which the anus develops from the first opening in the embryo, with humans and starfish as examples.

Chordates

A phylum of animals that, at some stage in their life cycle, possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, endostyle, and a post-anal tail.