Which of the Following Statements Is True of Endocrine Glands

question 49

Multiple Choice

Which of the following statements is true of endocrine glands?

• A) They carry their secretions to an external surface.
• B) They are classified by the presence of ducts.
• C) They are ductless.
• D) They secrete hormones onto an epithelial surface.

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Definitions:

Dinoflagellates

A group of protists characterized by their two beating flagella, some of which are photosynthetic, while others can cause red tides.

Euglenoids

A diverse group of unicellular flagellate protists, often found in fresh water, and characterized by the presence of a pellicle, chloroplasts for photosynthesis, and a unique method of motility.

DNA Evidence

Genetic material used in courts or investigations to prove the presence or absence of an individual at a crime scene, or to establish paternity or other relationships.

Protists

The group of eukaryotic organisms that are not a plant, fungus, or animal. Protists are generally a microscopic, complex single cell; they evolved before other types of eukaryotes in the history of Earth.