Refer to the Figure

question 37

Essay

Refer to the figure.

-You are studying a remote island before and after a volcanic eruption. Data at Time 1 were collected one month before the eruption, and data at Time 2 were collected one month after the eruption. All of the species on the island are endemic. The island is 100 km across. Each animal icon represents 20 individuals. Species A and B (the two snail species) generally move a distance of only 2 m a day. Species C (the bird) often covers 20 km a day in search of food. After the eruption, the lava flow hardens, and the island is divided by a 20-km strip of bare rock with few if any resources these animals need to survive. What is the most likely explanation for what happened to species A as a result of the volcanic eruption?

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Definitions:

Strokes

A medical condition where poor blood flow to the brain results in cell death, causing symptoms like paralysis, speech difficulties, and other serious health issues.

Osteoporosis

A medical condition characterized by weakened bones, making them fragile and more prone to fractures, often due to aging or hormonal changes.

Presbycusis

The loss of hearing that gradually occurs in most individuals as they grow older.

Broken Bones

describe fractures or discontinuities in the continuity of bones, often resulting from trauma, stress, or other health conditions.