In an Experiment Carried Out to Study the Energy Flow

question 14

Multiple Choice

In an experiment carried out to study the energy flow through an ecosystem scientists measure the total solar energy captured by plants to be 10,000 kilocalories.The portion of this available to the third trophic level will be

• A) 10000 kilocalories
• B) 1000 kilocalories
• C) 100 kilocalories
• D) 10 kilocalories
• E) 1 kilocalorie

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Definitions:

Clot Formation

The process by which blood changes from a liquid to a gel, forming a clot, which is essential in preventing excessive bleeding when blood vessels are injured.

Thrombin

An enzyme in blood plasma that causes the clotting of blood by converting fibrinogen to fibrin.

Prothrombin

A protein present in blood plasma that is converted into active thrombin during coagulation, playing a key role in blood clot formation.

Fibrinogen

A soluble plasma protein that is converted to the insoluble protein fibrin during blood clotting.