Which Statement About Signaling Within Organisms Is True

question 151

Multiple Choice

Which statement about signaling within organisms is true?

• A) Intercellular communication occurs in bacteria using hormones.
• B) Sponges lack both a nervous system and chemical signaling among cells.
• C) Over the course of evolution, the structures of chemical signals have been conserved, but their functions have evolved.
• D) Plants lack both a nervous system and chemical signaling among cells.
• E) Particular hormones are typically confined to specific taxa.

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Definitions:

Plant Foods

Refers to foods derived from plants, including vegetables, fruits, whole grains, nuts, seeds, and legumes.

Folic Acid

A B-vitamin that is crucial for healthy cell growth and development, especially significant during pregnancy for the prevention of neural tube defects.

Pregnant

The state of carrying a developing embryo or fetus within the female body, typically lasting around 40 weeks in humans.

Alpha-Linolenic Acid

An essential omega-3 fatty acid found in seeds and nuts, important for heart health and maintaining proper cellular function.