In this chapter, you will learn about the different types of evolution. You will also complete a worksheet to help you understand the theory of evolution. Evolution is a scientific process that explains how living things change over time. The theory of evolution is supported by a large amount of evidence, and it is one of the most studied theories in science. Thanks for studying with me!
Form Name | Chapter 15 Theory Of Evolution Worksheet Form |
Form Length | 2 pages |
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Avg. time to fill out | 30 sec |
Other names | natural selection and evidence of evolution worksheet answer key, reinforcement evolution worksheet answer key, the theory of evolution worksheet answer key, reinforcement evolution answer key pdf |
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NameDateClass
Chapter | Reinforcementi | and Study Guidei | |
15 | The Theory of Evolution | SECTION 15.1 NATURAL SELECTION AND THE | |
EVIDENCE FOR EVOLUTION |
In your textbook, read about Charles Darwin and natural selection.
For each statement, write true or false.
____________________ 1. H.M.S. Beagle, upon which Charles Darwin served as naturalist, set sail on a
collecting and mapping expedition in 1831.
____________________ 2. The environments that Darwin studied exhibited little biological diversity.
____________________ 3. By careful anatomical study, Darwin found that the many species of plants
and animals on the Galapagos Islands were unique and bore no relation to species seen in other parts of the world.
____________________ 4. The tortoises of the Galapagos Islands are among the largest on Earth.
____________________ 5. After returning to England, Darwin studied his collections for 10 years.
____________________ 6. Darwin named the process by which evolution proceeds artificial selection.
You are a naturalist who traveled to the Galapagos Islands. Below are excerpts from field notes. Next to each set of notes, write a heading. Use these choices: Overproduction of Offspring, Natural Selection, Struggle for Existence, Variation.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies,
Field Notes
Female finches found on the Galapagos Islands lay enormous numbers of eggs.
Overproduction of Offspring
__________________________________
Field Notes
Some finches’ beaks are long, some are short.The finches with long beaks are better adapted to remove the insects from the bark.
Variation
__________________________________
Field Notes
These finches compete for a particular species of insect that inhabits the small holes found in tree bark.
Struggle for Existence
__________________________________
Field Notes
The finches with the long beaks survive and produce greater numbers of offspring with long beaks.
Natural Selection
__________________________________
REINFORCEMENT AND STUDY GUIDE | CHAPTER 15 BIOLOGY: The Dynamics of Life 65 |
NameDateClass
Chapter | Reinforcementi | and Study Guidei | |
15 | |||
The Theory of Evolution, CONTINUED |
SECTION 15.1 NATURAL SELECTION AND THE
EVIDENCE FOR EVOLUTION, CONTINUED
In your textbook, read about natural selection and adaptations.
Identify the type of structural adaptation that the statement describes. If the statement applies to both, write both. Use these choices: mimicry, camouflage, both.
____________________ 11. Enable(s) an organism to blend in with its surroundings
____________________ | 12. | Provide(s) protection for an organism by copying the appearance of |
another species | ||
____________________ | 13. | The coloration of a flounder that allows the fish to avoid predators |
____________________ | 14. | Involve(s) changes to the external appearance of an organism |
____________________ | 15. | A flower that looks like a female bee |
In your textbook, read about evidence for evolution.
Complete the chart by checking the kind of evidence described.
Evidence | Type of Evidence | |||||
Homologous | Analogous | Vestigial | Embryological | Genetic | ||
Structure | Structure | Structure | Development | Comparisons | ||
16. | A modified structure | |||||
seen among different | ✓ | |||||
groups of descendants | ||||||
17. | In the earliest stages of | |||||
development, a tail and | ||||||
gill slits can be seen in | ✓ | |||||
fish, birds, rabbits, and | ||||||
mammals. | ||||||
18. | Exemplified by forelimbs | |||||
of bats, penguins, lizards, | ✓ | |||||
and monkeys | ||||||
19. | The forelimbs of | ✓ | ||||
flightless birds | ||||||
20. | DNA and RNA | |||||
comparisons may lead | ✓ | |||||
to evolutionary trees. | ||||||
21. | Bird and butterfly wings | |||||
have same function but | ✓ | |||||
different structures | ||||||
22. | A body structure reduced | ✓ | ||||
in function but may have | ||||||
been used in an ancestor | ||||||
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
66 CHAPTER 15 BIOLOGY: The Dynamics of Life | REINFORCEMENT AND STUDY GUIDE |