An Ecologist Is Studying the Painted Turtle Population in a Small

question 116

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 birth rate per year for this population?

• A)0)4
• B)0)6
• C)20
• D)40
• E)60

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Definitions:

Semen

Penile ejaculate; thick, yellowish white, viscous fluid containing spermatozoa and secretions of the testes, seminal vesicles, prostate, and bulbourethral glands.

Emission

Discharge; accumulation of semen in the urethra prior to ejaculation. A nocturnal emission is a discharge of semen while asleep.

Ejaculation

The discharge of semen from the male reproductive tract as a result of sexual arousal.

Seminiferous Tubules

Narrow, coiled tubules within the testes where sperm are produced via the process of spermatogenesis.