Crocodilians Are Classified as Reptiles; However, They Share a Common

question 36

Multiple Choice

Crocodilians are classified as reptiles; however, they share a common ancestor with birds, which are not reptiles. Therefore, Reptilia is a ____ taxon. ​

• A)monophyletic
• B)polyphyletic
• C)paraphyletic
• D)genetically unrelated
• E)homoplastic

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Definitions:

Antibodies

Proteins produced by the immune system in response to antigens, which are harmful substances, helping to neutralize or destroy them.

Innate Immunity

The body's first line of defense against infection that includes physical barriers, immune cells, and proteins, responding to pathogens in a generic way.

Helper T Cells

A type of T cell that plays a critical role in the immune response by activating and directing other immune cells.

Phagocytosis

The process by which cells, particularly immune cells, engulf and digest large particles or microorganisms.