The Fossil Fish Tiktaalik Made Headlines in 2005 Because It

question 12

Multiple Choice

The fossil fish Tiktaalik made headlines in 2005 because it

• A) was preserved with a hook in its mouth and represents the oldest evidence of human fishing.
• B) was the largest shark ever recovered from the fossil record.
• C) represents a transitional form between lobe-finned fish and terrestrial vertebrates.
• D) was found alive in the modern deep ocean; previously,the fish was thought to be extinct.

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Definitions:

SSRIs

Selective Serotonin Reuptake Inhibitors, a class of drugs commonly used to treat depression by increasing levels of serotonin in the brain.

Serotonin Reuptake

A process by which neurotransmitters are reabsorbed by the neuron after being released into the synapse, relevant in the treatment of depression.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA, carrying genetic information.

DNA

Deoxyribonucleic acid, a self-replicating material which is the carrier of genetic information in nearly all living organisms.