Refer to the Figure Showing a 9-Day Chick Embryo

question 61

Multiple Choice

Refer to the figure showing a 9-day chick embryo. Based on the figure, which statement is true?

• A) The structure at point 6 is the last extraembryonic membrane to form.
• B) The structure at point 7 includes contributions from ectoderm and mesoderm.
• C) The structure at point 6 functions in gas exchange.
• D) The structure at point 3 includes contributions from endoderm and mesoderm.
• E) Blood vessels line the outer surface of the structure at point 6.

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Definitions:

Copper

A metal element with high thermal and electrical conductivity, often used in electrical wiring and construction materials.

Zinc

A chemical element with the symbol Zn and atomic number 30, known for its corrosion-resistant properties and wide use in galvanization and alloys.

Average Cost

The total cost of production divided by the number of units produced, indicating the cost per unit.

Copper

A reddish-brown metal with high electrical and thermal conductivity, used extensively in electrical wiring and plumbing.