Which Is Likely Not an Example of Coevolution

question 43

Multiple Choice

Which is likely not an example of coevolution?

• A) A moth that has a long tongue reaches the nectar of a flower that is housed in a long tube.
• B) A tree trunk growing thicker and stronger prevents breakage from hurricane force winds.
• C) A caterpillar develops resistance to a toxin produced by its main plant food source.
• D) A mollusk develops a thick shell to avoid predation by a crab with strong pinchers.
• E) All answers could be examples of coevolution.

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Definitions:

Tyrosine Kinases

A family of enzymes that catalyze the transfer of a phosphate group from ATP to a tyrosine residue in a protein, playing key roles in signal transduction pathways.

Enzyme-Linked Receptors

A class of membrane receptors that, when bound to a ligand, activate an intrinsic enzyme activity, leading to a cellular response.

G Protein

A family of proteins that act as molecular switches inside cells, involved in transmitting signals from various stimuli outside a cell to its interior.

Adenylyl Cyclase

An enzyme that converts ATP to cyclic AMP (cAMP) in the cell's signaling pathways.