Research by James Byers on the Relationship Between a Native

question 1

Multiple Choice

Research by James Byers on the relationship between a native and an invasive species of mud snail

• A) demonstrated that the invasive species Batillaria grows faster than the native species Cerithidea.
• B) demonstrated that at high densities Batillaria continued to grow at a relatively high rate while Cerithidea lost weight.
• C) indicated that Batillaria is much more efficient at converting available food into its own biomass.
• D) predicts a time to competitive exclusion of Cerithidea by Batillaria of 55 to 70 years.
• E) All of the choices are correct.

---

Definitions:

Decrease in Blood Pressure

A reduction in the force exerted by circulating blood upon the walls of blood vessels.

Vagus Nerve

The tenth cranial nerve that innervates many organs, including the heart, lungs, and digestive tract, playing a critical role in the parasympathetic nervous system.

Somatic Motor Neuron

A type of neuron that sends impulses from the central nervous system to skeletal muscle cells, causing them to contract.

Autonomic Ganglion

A cluster of nerve cells that are part of the autonomic nervous system, which controls involuntary bodily functions.