If Shaded and Unshaded Spheres Represent Atoms of Different Elements,as

question 41

Multiple Choice

If shaded and unshaded spheres represent atoms of different elements,as shown in drawing (1) ,which drawings (2) -(4) represent the law of multiple proportions?

• A)only drawings (2)and (3)
• B)only drawings (2)and (4)
• C)only drawings (3)and (4)
• D)drawings (2),(3),and (4)

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Definitions:

Umbilical Cord

A flexible cord-like structure containing blood vessels, connecting the fetus to the placenta during pregnancy.

Allantois

An embryonic membrane in reptiles, birds, and mammals that is involved in respiration and excretion.

Fertilization

The process of a sperm cell joining with an ovum (egg cell) to form a zygote, initiating the development of a new organism.

Cleavage

The division of cells in the early embryo following fertilization, leading to the formation of a multicellular organism.