Once Fertilization Has Occurred, the Activities of Development Begin

question 13

Multiple Choice

Once fertilization has occurred, the activities of development begin. The first such activity is_________ .

• A)the formation of organ systems
• B)cellular specialization
• C)an increase in cell number

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Definitions:

Polarity

A property of having distinct and opposite ends or sides, often seen in molecules with uneven distribution of charges.

Third Energy Level

The third energy level in an atom is the third shell that surrounds the nucleus, where electrons can be found.

Protons

Positively charged particles found within atomic nuclei that, along with neutrons, define the atomic mass.

Electrons

Subatomic particles with a negative charge, orbiting the nucleus of an atom and involved in chemical bonds and electricity.