Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 11, Problem 9RQ
The fact that DNA sequences are more similar in more closely related organisms is evidence of what?
a. optimal design in organisms
b. adaptation
c. mutation
d. descent with modification
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Chapter 11 Solutions
Concepts of Biology
Ch. 11 - Figure 11.7 Do you think genetic drift would...Ch. 11 - Which scientific concept did Charles Darwin and...Ch. 11 - Which of the following situations will lead to...Ch. 11 - What is the difference between micro- and...Ch. 11 - Population genetics is the study of ________. a....Ch. 11 - Galapagos medium ground finches are found on Santa...Ch. 11 - In which of the following pairs do both...Ch. 11 - The wing of a bird and the arm of a human are...Ch. 11 - The fact that DNA sequences are more similar in...Ch. 11 - Which situation would most likely lead to...
Ch. 11 - What is the main difference between dispersal and...Ch. 11 - Which variable increases the likelihood of...Ch. 11 - The word “theory” in theory of evolution is best...Ch. 11 - Why are alternative scientific theories to...Ch. 11 - If a person scatters a handful of plant seeds from...Ch. 11 - Explain the Hardy-Weinberg principle of...Ch. 11 - Describe natural selection and give an example of...Ch. 11 - Why do scientists consider vestigial structures...Ch. 11 - Why do island chains provide ideal conditions for...Ch. 11 - Two species of fish had recently undergone...Ch. 11 - How does the scientific meaning of “theory” differ...Ch. 11 - Explain why the statement that a monkey is more...
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- This question has multiple parts (A, B & C), and under the subject of Nutrition. Thank you!arrow_forwardCalculate the CFU/ml of a urine sample if 138 E. coli colonies were counted on a Nutrient Agar Plate when0.5 mls were plated on the NA plate from a 10-9 dilution tube. You must highlight and express your answerin scientific notatioarrow_forwardDon't copy off the other answer if there is anyarrow_forward
- Use the following information to answer the question(s) below. Martin Wikelski and L. Michael Romero (Body size, performance and fitness in Galápagos marine iguanas, Integrative and Comparative Biology 43 [2003]:376-86) measured the snout-to-vent (anus) length of Galápagos marine iguanas and observed the percent survival of different-sized animals, all of the same age. The graph shows the log snout-vent length (SVL, a measure of overall body size) plotted against the percent survival of these different size classes for males and females. Survival (%) 100- 80- 60- 40- 20- 0+ 1.9 T 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Log SVL (mm) 19) Examine the figure above. What type of selection for body size appears to be occurring in these marine iguanas? A) directional selection B) stabilizing selection C) disruptive selection D) You cannot determine the type of selection from the above information. 3arrow_forward24) Use the following information to answer the question below. Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. They identify the gene responsible for toxin production. The dominant allele (T) codes for an enzyme that makes the toxin, and the recessive allele (t) codes for a nonfunctional enzyme that cannot produce the toxin. Heterozygotes produce an intermediate amount of toxin. The genotypes of all individuals in the population are determined (see table) and used to determine the actual allele frequencies in the population. TT 0.49 Tt 0.42 tt 0.09 Refer to the table above. Is this population in Hardy-Weinberg equilibrium? A) Yes. C) No; there are more homozygotes than expected. B) No; there are more heterozygotes than expected. D) It is impossible to tell.arrow_forward30) A B CDEFG Refer to the accompanying figure. Which of the following forms a monophyletic group? A) A, B, C, and D B) C and D C) D, E, and F D) E, F, and Garrow_forward
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