Estimates of Current Rates of Extinction

question 64

Multiple Choice

Estimates of current rates of extinction

• A) indicate that we have reached a state of stable equilibrium in which speciation rates equal extinction rates.
• B) suggest that one-half of all animal and plant species may be gone by the year 2100.
• C) indicate that rates may be greater than the mass extinctions at the close of the Cretaceous period.
• D) indicate that only 1% of all of the species that have ever lived on Earth are still alive.
• E) suggest that rates of extinction have decreased globally.

---

Definitions:

Medication Administration

The process of giving medicine to a patient according to a doctor's prescription.

Enteral Feeding Tube

A medical device used to provide nutrition directly into the stomach or intestine when a patient is unable to eat by mouth.

Liquid Aspirin

Aspirin in a liquid form, used for its pain-relieving, fever-reducing, and anti-inflammatory properties; often easier to digest than the solid form.

Crushed Chewable

A form of medication designed to be easily crushed for consumption or chewed before swallowing.