Fossilized Stromatolites

question 13

Multiple Choice

Fossilized stromatolites

• A) all date from 2.7 billion years ago.
• B) formed around deep-sea vents.
• C) resemble structures formed by bacterial communities that are found today in some warm, shallow, salty bays.
• D) provide evidence that plants moved onto land in the company of fungi around 500 million years ago.
• E) contain the first undisputed fossils of eukaryotes and date from 2.1 billion years ago.

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Definitions:

Cuff

A band or folded part of a garment at the end of a sleeve or pant leg, which can also refer to devices used in medical settings to measure blood pressure.

Blood Pressure Reading

The measurement of the pressure of circulating blood against the walls of blood vessels, vital for assessing cardiovascular health.

Brachial

Pertaining to the arm, especially the upper arm, or a structure resembling an arm.

Femoral

Pertaining to the femur or thigh, a major bone in the leg that supports the weight of the body.