Even Before Organs Begin to Form, Rudimentary Versions of the Shapes

question 4

Multiple Choice

Even before organs begin to form, rudimentary versions of the shapes of bones begin to form in a fetus due to the

• A) activity of growth hormone.
• B) formation of secondary ossification sites.
• C) activity of chondroblasts.
• D) formation of an osteoclast.
• E) breakdown of hyaline cartilage.

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Definitions:

Pollutants

Substances introduced into the environment that cause harm or discomfort to the ecosystem or living organisms, including chemicals, waste materials, and noise.

Foam Insulation

A type of building insulation that is made from various types of foam and is used to reduce heat transfer.

Colourless Gas

A gas that does not have any color visible to the human eye, which can be natural or man-made.

Thermal Inversion Layer

A weather phenomenon where a layer of warm air traps pollution and cooler air beneath it, often leading to poor air quality.