How Did the Cretaceous and Permian Extinctions Affect the Numbers

question 22

Multiple Choice

How did the Cretaceous and Permian extinctions affect the numbers of prey organisms?

• A) After the Permian extinction, the numbers or prey organisms increased then levelled off.
• B) After the Cretaceous extinction, the number of predators continuously increased.
• C) The Permian predators removed all Cretaceous predators.
• D) Predators and prey decreased in numbers.

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Definitions:

Enoxaparin

Enoxaparin is an anticoagulant medication widely used to prevent and treat deep vein thrombosis and pulmonary embolism, functioning by thinning the blood to prevent clot formation.

Subcutaneously

A method of administering medication or fluids directly into the fatty tissue under the skin, allowing for slower absorption into the bloodstream.

Solution

A homogeneous mixture of two or more substances where the solute is dissolved in the solvent; often refers to liquid preparations in various contexts.

Pharmacology

The study of drugs.