In the Late Nineteenth and Twentieth Centuries, Several Massive Losses

question 9

Multiple Choice

In the late nineteenth and twentieth centuries, several massive losses of organisms occurred. Bison, passenger pigeons, and many other birds declined rapidly or went extinct. Most deciduous forests and prairies were replaced by agricultural fields. These changes led to

• A) an increase in biodiversity, as natural processes sped up to replace the losses.
• B) an increase in biodiversity, as citizens spontaneously responded to the losses.
• C) the rise of conservation biology, as people became concerned about biodiversity losses.
• D) an increase in the number of ecologists, who were needed to study the remaining species.

---

Definitions:

Long-term Negative Outcomes

Adverse effects or disadvantages that persist over an extended period as a result of specific actions or conditions.

Children

Young human beings below the age of puberty or below the legal age of majority.

Escape Learning

A type of learning in which an organism acquires a response to terminate an unpleasant stimulus.

Tension Headache

A common type of headache characterized by a feeling of tightness around the forehead or back of the head and neck.