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 8RQ
The wing of a bird and the arm of a human are examples of ______.
a. vestigial structures
b. molecular structures
c. homologous structures
d. analogous structures
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The fossil record shows how ________________
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1)The wings of an insect and bird have similar structures and purposes, but different ancestors; therefore, the wings of both are ______ structures. *
A. Homologous
B. Analogous
C. Identical
D. Vestigial
Q1: Variable descriptions of a character is called a _____________.
A. Homologous character
B. Character state
C. Analogous character
D. Shared derived character
Q2: Vestigial structures are the structures that used to have functions in the past but mostly lost these functions in the present. Which of the following is NOT an example of a vestigial structure?
A. Nictitating membrane in humans
B. Appendix in humans
C. Femur in humans
D. Coccyx in humans
Q3: According to Wallace and Darwin, for new individuals to emerge, a group of individuals must become?
A. Reproductively crossed among other organisms
B. Geographically isolated from the rest of the original population
C. Embryologically different from the rest of other organisms
D Reproductively isolated from the rest of the original population
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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- 4. Anatomical structures that share a common ancestry are called __________structures. * A. Analogous B. Evolutionary C. Homologous D. Vestigialarrow_forwardThe first forms of life on Earth were ________. a. plants b. microorganisms c. birds d. dinosaursarrow_forwarda diagram that shows evolutionary connections between clades is called a_______ .a. karyotype c. cladogramb. molecular clock d. homologous structurearrow_forward
- The defining trait of hominins is __________.a. tool use b. bipedalism c. a big brain d. endothermyarrow_forwardInsects, birds, and bats can fly. Which of the following is a derived characteristic unique to birds and bats? A. light body weight B. modified limbs for flight C. high metabolic rate D. large surface of wingarrow_forwardThe 3.6-million-year-old footprints left by bipedal walkers in Tanzania were probably made by_____ . a. australopiths c. modern humans b. Neanderthals d. Homo erectusarrow_forward
- Which of the following phenotypes would most likely be the result of aHox gene mutation? a. abnormal body length or height b. two different eye colors c. the contraction of a genetic illness d. two fewer appendages than normalarrow_forward______ is a way of reconstructing evolutionary history based on derived characters. a. Cladistics c. Convergent evolution b. Linnaean taxonomy d. Divergent evolutionarrow_forwardWhat is embryology? A. The science of the development of embryos from fertilization to birth B. Microevolution C. A multicellular organism that primarily undergoes extensive and rapid growth D. Macro evolutionarrow_forward
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