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dem82 [27]
3 years ago
15

Trichomes are hairlike outgrowths of the epidermis of plants that are thought to provide protection against being eaten by herbi

vores (herbivory). In a certain plant species, stem trichome density is genetically determined.
To investigate variation in stem trichome density within the plant species, a student counted the number of trichomes on the stems of six plants in each of three different populations. The student used the data to calculate the mean trichome density (numbers of hairs per square centimeter) for each population. The results are provided in the table below.
TRICHOME DENSITY IN THREE PLANT POPULATIONS (number of trichomes/cm²) Standard Error of Population Plant 1 Plant 2 Plant 3 Plant 4 Plant 5 Plant 6 Mean the Mean (SEM) I 1 II 1 6 9 15 8 12 13 10 9 14 9 11 8 13 12 6 17 8 9 16 14
(a) On the axes provided, create an appropriately labeled graph to illustrate the sample means of the three populations to within 95% confidence (i.e., sample mean + 2 SEM).
(b) Based on the sample means and standard errors of the means, identify the two populations that are most likely to have statistically significant differences in the mean stem trichome densities. Justify your response.
1. Independent variable
2. Dependent variable
3. Claim from the graph
4. Evidence from the graph (at least 3 bullets)
Mathematics
1 answer:
geniusboy [140]3 years ago
5 0

Answer:

E

Step-by-step explanation:

fire + gas = bigger fire

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