-Which of the Elements Indicated on the Above Periodic Table

question 42

Multiple Choice

-Which of the elements indicated on the above periodic table has a common allotrope stable at 25°C having molecular structure (1) ?

• A)element A
• B)element B
• C)element C
• D)element D

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Definitions:

Amniotic Fluid

The protective liquid contained within the amniotic sac of a pregnant female, surrounding and cushioning the fetus throughout its development.

Mother's Blood

The circulatory system of a pregnant woman that provides oxygen and nutrients to the fetus through the placenta and carries away fetal waste products.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by developmental and intellectual delays.

Organogenesis

The phase during embryonic development where organs are formed from the primary germ layers.