Which of the Following Statements About Lymph and Lymph Vessels

question 55

Multiple Choice

Which of the following statements about lymph and lymph vessels is true?

• A) Lymph leaves the system of blood vessels through the veins due to blood pressure.
• B) Lymph returns to the cardiovascular system through a network of open lymph capillaries and vessels that drain the tissues of lymph.
• C) Valves inside the lymph vessels direct the flow of lymph in either direction.
• D) Lymph vessels eventually drain into one collecting duct.

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Definitions:

Pigments

Substances that produce color in materials by absorbing certain wavelengths of light and reflecting others, found in nature in plants, animals, and minerals.

Visible Light

The portion of the electromagnetic spectrum that is visible to the human eye, ranging approximately from 380 to 750 nanometers in wavelength.

Photosynthetic Pigments

Molecules found in plants and other photosynthetic organisms that absorb light energy for use in photosynthesis, including chlorophyll and carotenoids.

Carotenoids

Pigments found in plants and some microorganisms that play a role in photosynthesis and provide color to fruits and vegetables.