In Which Specific Era of the Phanerozoic Eon, Did Shelly

question 71

Short Answer

In which specific Era of the Phanerozoic Eon, did shelly organisms first appear in the fossil record?   _________________________

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Definitions:

Cardio-Vascular Diseases

A class of diseases that involve the heart or blood vessels, including coronary artery disease, hypertension, and stroke.

Fried Foods Tax

A hypothetical or proposed tax imposed on products with high levels of fried content to discourage consumption and address health concerns.

Value-Added Tax (VAT)

A tax on the amount by which the value of an article has been increased at each stage of its production or distribution.

Income Tax

A government levy on individuals' or corporations' earnings.