The Folate Hypothesis

question 15

Multiple Choice

The folate hypothesis

• A)contradicts the importance of the relationship between UV radiation and skin cancer.
• B)purports to explain why dark skin is advantageous in high UV environments.
• C)CANNOT explain why dark skin is advantageous in high UV environments.
• D)explains why dark-skinned individuals often have rickets.
• E)explains why leaves fall in autumn.

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Definitions:

Vascular Tissue

Specialized plant tissue consisting of xylem and phloem, responsible for water, nutrient transportation, and structural support.

Protected Zygote

A fertilized egg cell that is safeguarded from the external environment by physical or biochemical means.

Cell Walls

Rigid layers found outside the plasma membrane in plants, fungi, bacteria, and algae cells, providing structure, protection, and support.

Bryophytes

A group of land plants that includes mosses, liverworts, and hornworts, characterized by their life cycle stages and lack of specialized vascular tissues.