The First Vertebrates to Evolve Lacked Jaws and Had Skeletons

question 64

Multiple Choice

The first vertebrates to evolve lacked jaws and had skeletons made from a strong flexible tissue called cartilage.As shown in the figure below,________ are a modern example of this ancient group of vertebrates known as jawless fishes.

• A) Amphibians
• B) Reptiles
• C) Ray-finned fishes
• D) Lampreys

Understand the comprehensive aspects involved in monitoring and interpreting vital signs.

Recognize the impact of environmental factors and personal behaviors on vital signs and general health.

Identify appropriate nursing responses and interventions based on vital signs readings.

Understand the principles and importance of accurate blood pressure measurement and monitoring.

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Definitions:

Stereochemistry

The study of the spatial arrangement of atoms in molecules and its influence on the physical and chemical properties of substances.

Solvolysis

A chemical reaction in which the solvent plays the role of a reactant, breaking bonds within the substrate molecule, often involving water or alcohol.

Methanol

A basic type of alcohol known by the chemical formula CH3OH, utilized in various applications including as a solvent, antifreeze, fuel, and as a starting point for the synthesis of other chemical compounds.

Relative Rate

A measure of the speed at which one reactant in a chemical reaction is consumed compared to another, often used to determine mechanisms in kinetics studies.