An Ecologist Is Studying the Painted Turtle Population in a Small

question 57

Multiple Choice

An ecologist is studying the painted turtle population in a small pond. At the beginning of the year, there are 100 individuals. Over the course of a year, 40 turtles are born and 60 die. There is no migration. What is the growth rate (r) of the painted turtle population?

• A) 0.6
• B) - 0.4
• C) 0.2
• D) - 0.2
• E) 0.4

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Definitions:

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water, generating oxygen as a byproduct.

Aerobic Respiration

A process of producing cellular energy involving oxygen. Cells use this method to convert glucose and oxygen into energy.

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.

Lactate Fermentation

An anaerobic metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is typical in muscle cells under high demand for energy.