The Earliest Multicellular Animals in the Fossil Record Are

question 18

Multiple Choice

The earliest multicellular animals in the fossil record are:

• A)jellyfish.
• B)kelp.
• C)trilobites.
• D)worms.
• E)cyanobacteria.

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Definitions:

Placebo Effect

The phenomenon where a patient's symptoms can improve after receiving a treatment with no therapeutic value, due to their belief in its efficacy.

Medically Neutral Substance

A substance that has no beneficial or harmful effect on health when administered.

Drug-Induced Change

Alterations in physiology, behavior, or consciousness resulting from the consumption or administration of pharmaceutical substances or drugs.

Disease Prevention

Measures taken to prevent the onset of diseases or health conditions, often involving lifestyle changes or vaccinations.