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Mating success Reproductive success Mating success 80 Reproductive success 12 60 60 40 40 20 20 30 30 12 20 20 10 10 0123 4 5 0 1 2 34 Number of mates 100 200 300 40 80 120 Number of mates Number of offspring Number of offspring Figure 2. Distributions showing variation in mating and reproductive success in male (upper) and female (lower) of Rough-Skinned Newts (left) and Broad-nosed Pipefish (right). 3. Which species would you predict would exhibit the greatest degree of sexual dimorphism? Use sexual selection theory to support your answer. Number of females Number of males

Mating success Reproductive success Mating success 80 Reproductive success 12 60 60 40 40 20 20 30 30 12 20 20 10 10 0123 4 5 0 1 2 34 Number of mates 100 200 300 40 80 120 Number of mates Number of offspring Number of offspring Figure 2. Distributions showing variation in mating and reproductive success in male (upper) and female (lower) of Rough-Skinned Newts (left) and Broad-nosed Pipefish (right). 3. Which species would you predict would exhibit the greatest degree of sexual dimorphism? Use sexual selection theory to support your answer. Number of females Number of males

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Figure 2: Distributions of Mating and Reproductive Success** The figure consists of bar graphs illustrating the variation in mating and reproductive success for Rough-Skinned Newts (left) and Broad-nosed Pipefish (right), divided between males (upper graphs) and females (lower graphs). **Graph Descriptions:** 1. **Rough-Skinned Newts:** - **Mating Success (Males, Upper Left):** The x-axis shows the number of mates (0 to 5), and the y-axis shows the number of males. Most males have 0 mates, and a few have up to 3. - **Reproductive Success (Males, Upper Middle):** The x-axis represents the number of offspring (0 to 300+), and the y-axis indicates the number of males. Most males have 0 offspring, with decreasing numbers as offspring count increases. - **Mating Success (Females, Lower Left):** The x-axis shows the number of mates, with most females having 2 mates, while the y-axis shows the number of females. - **Reproductive Success (Females, Lower Middle):** The x-axis represents the number of offspring, and the y-axis shows the number of females. The distribution is almost normal, peaking at approximately 200 offspring. 2. **Broad-nosed Pipefish:** - **Mating Success (Males, Upper Right):** The x-axis shows the number of mates (0 to 4), and the y-axis shows the number of males. The number of mates peaks at 1 and decreases thereafter. - **Reproductive Success (Males, Upper Right Middle):** The x-axis presents the number of offspring (0 to 120), and the y-axis shows the number of males, decreasing as the number of offspring increases. - **Mating Success (Females, Lower Right):** The x-axis shows the number of mates, with the highest number being 0, while the y-axis shows the number of females. - **Reproductive Success (Females, Lower Right Middle):** The x-axis denotes the number of offspring, and the y-axis shows the number of females, peaking around 40 offspring. **Question:** 3. Which species would you predict would exhibit the greatest degree of sexual dimorphism? Use sexual selection theory to support your answer.
Transcribed Image Text:**Figure 2: Distributions of Mating and Reproductive Success** The figure consists of bar graphs illustrating the variation in mating and reproductive success for Rough-Skinned Newts (left) and Broad-nosed Pipefish (right), divided between males (upper graphs) and females (lower graphs). **Graph Descriptions:** 1. **Rough-Skinned Newts:** - **Mating Success (Males, Upper Left):** The x-axis shows the number of mates (0 to 5), and the y-axis shows the number of males. Most males have 0 mates, and a few have up to 3. - **Reproductive Success (Males, Upper Middle):** The x-axis represents the number of offspring (0 to 300+), and the y-axis indicates the number of males. Most males have 0 offspring, with decreasing numbers as offspring count increases. - **Mating Success (Females, Lower Left):** The x-axis shows the number of mates, with most females having 2 mates, while the y-axis shows the number of females. - **Reproductive Success (Females, Lower Middle):** The x-axis represents the number of offspring, and the y-axis shows the number of females. The distribution is almost normal, peaking at approximately 200 offspring. 2. **Broad-nosed Pipefish:** - **Mating Success (Males, Upper Right):** The x-axis shows the number of mates (0 to 4), and the y-axis shows the number of males. The number of mates peaks at 1 and decreases thereafter. - **Reproductive Success (Males, Upper Right Middle):** The x-axis presents the number of offspring (0 to 120), and the y-axis shows the number of males, decreasing as the number of offspring increases. - **Mating Success (Females, Lower Right):** The x-axis shows the number of mates, with the highest number being 0, while the y-axis shows the number of females. - **Reproductive Success (Females, Lower Right Middle):** The x-axis denotes the number of offspring, and the y-axis shows the number of females, peaking around 40 offspring. **Question:** 3. Which species would you predict would exhibit the greatest degree of sexual dimorphism? Use sexual selection theory to support your answer.
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