When we look at HEAD lice, we see (a) Lice from light and dark birds on feathers of light and dark birds (b) Mean luminosity of body and head lice from light and dark birds Luminosity score (mean ± std error) 225- 200 I O Lice from light birds ● Lice from dark birds - VS. Body lice (N = 16) p < 0.05 Head lice (N = 10) lower luminosity on light colored birds and higher luminosity on dark colored birds higher luminosity on light colored birds and lower luminosity on colored birds no differences in the luminosity between the two species on the two different birds

Human Anatomy & Physiology (11th Edition)
11th Edition
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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The image is a scientific exploration of head lice on birds, specifically analyzing the luminosity of lice from light and dark birds.

**Section (a):** 
This section shows images of two birds and the lice found on them. On the top left, a light-colored bird is depicted, while the top right shows a dark-colored bird. Below these, images of lice are shown: one from a light bird on the left and one from a dark bird on the right. The lice exhibit differences in coloration that correspond to the bird they were collected from.

**Section (b):**
This section provides a graph of the mean luminosity of body and head lice from light and dark birds. 

- The x-axis differentiates between body lice and head lice, indicating sample sizes: body lice (N = 16) and head lice (N = 10).
- The y-axis represents the luminosity score (mean ± std error).
- Two sets of data points are shown: yellow represents lice from light birds, while dark represents lice from dark birds.

The data suggest a statistical difference in luminosity scores (p < 0.05) between lice from light and dark birds.

**Options:**
1. Lower luminosity on light-colored birds and higher luminosity on dark-colored birds.
2. Higher luminosity on light-colored birds and lower luminosity on dark-colored birds.
3. No differences in the luminosity between the two species on the two different birds.

The highlighted option is "no differences in the luminosity between the two species on the two different birds," indicating that this is the correct interpretation based on the analysis presented.
Transcribed Image Text:The image is a scientific exploration of head lice on birds, specifically analyzing the luminosity of lice from light and dark birds. **Section (a):** This section shows images of two birds and the lice found on them. On the top left, a light-colored bird is depicted, while the top right shows a dark-colored bird. Below these, images of lice are shown: one from a light bird on the left and one from a dark bird on the right. The lice exhibit differences in coloration that correspond to the bird they were collected from. **Section (b):** This section provides a graph of the mean luminosity of body and head lice from light and dark birds. - The x-axis differentiates between body lice and head lice, indicating sample sizes: body lice (N = 16) and head lice (N = 10). - The y-axis represents the luminosity score (mean ± std error). - Two sets of data points are shown: yellow represents lice from light birds, while dark represents lice from dark birds. The data suggest a statistical difference in luminosity scores (p < 0.05) between lice from light and dark birds. **Options:** 1. Lower luminosity on light-colored birds and higher luminosity on dark-colored birds. 2. Higher luminosity on light-colored birds and lower luminosity on dark-colored birds. 3. No differences in the luminosity between the two species on the two different birds. The highlighted option is "no differences in the luminosity between the two species on the two different birds," indicating that this is the correct interpretation based on the analysis presented.
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