A Phylogenetic Tree

question 41

Multiple Choice

A phylogenetic tree

• A) shows ecological relationships among different organisms.
• B) relies on evidence from controlled experiments.
• C) helps us predict the future challenges facing living organisms.
• D) shows the order in which populations split and evolved into new species.
• E) is not subject to change once it has been constructed.

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Definitions:

Jugular

Relating to the neck or throat, especially with reference to veins that carry blood back to the heart.

Premature Ventricular Contractions (PVCs)

Extra, abnormal heartbeats originating from the ventricles of the heart, which can cause the sensation of a skipped beat or palpitations.

Defibrillator

A medical device used to deliver a therapeutic dose of electrical energy to the heart to treat life-threatening cardiac dysrhythmias, especially ventricular fibrillation and ventricular tachycardia.

Low-Density Lipoprotein

Often referred to as "bad" cholesterol, it transports cholesterol particles throughout your body and can build up on the walls of your arteries, potentially leading to heart disease.