01 - Woodstown-Pilesgrove Regional School District
Skills Worksheet
Chapter 10 Concept Review
MATCHING
IN THE SPACE PROVIDED, WRITE THE LETTER OF THE TERM OR PHRASE THAT BEST MATCHES THE DESCRIPTION.
1. a species that is not native to a particular region
2. any species that is likely to become endangered if it is not protected
3. species that are very important to the functioning of an ecosystem
4. any species whose numbers have fallen so low that it is likely to become extinct in the near future
5. a species when the very last individual dies
6. most unknown species belong to this group
7. growing crops among native plants instead of on cleared land
8. humans and familiar animals belong to this group
9. designed to protect groups of animal species by managing lands in a protected area
10. critical ecosystems with high species diversity
11. many antibiotics are derived from chemicals that come from this group
Concept Review continued
MULTIPLE CHOICE
IN THE SPACE PROVIDED, WRITE THE LETTER OF THE TERM OR PHRASE THAT BEST COMPLETES EACH STATEMENT OR BEST ANSWERS EACH QUESTION.
12. Members of a population may be prone to inherited genetic diseases if
a. the level of genetic diversity of the population is high.
b. inbreeding takes place frequently within the population.
c. a variety of habitats are available to the population.
d. interaction between populations takes place in an ecosystem.
13. The human diet has been enriched with native food products such as sweet potatoes, beans, tomatoes, and corn that come from
a. Pacific islands. c. Madagascar and Africa.
b. Southwest Asia. d. Central and South America.
14. What level of biodiversity is most commonly equated with the overall concept of biodiversity?
a. genetic diversity c. ecosystem diversity
b. species diversity d. all of the above
15. What groups of organisms are most in danger of extinction?
a. those with small populations
b. those that migrate or need special habitats
c. those with large populations that breed quickly
d. both (a) and (b)
16. Which of the following is not one of the ways in which coral reefs are threatened by human activities?
a. development along waterways
b. creation of artificial reefs
c. overharvesting of fish
d. pollution
17. How does preserving biodiversity come into conflict with human interests?
a. Additional land is used for agriculture or housing in response to population growth.
b. Species may represent food or a source of income.
c. both (a) and (b)
d. none of the above
18. Which of the following is not a provision of the Endangered Species Act?
a. No products from endangered or threatened species may be sold.
b. Protected plants may be uprooted.
c. Government projects may not further endanger endangered species.
d. A species recovery plan must be created.
Answer Key
Concept Review
MATCHING
1. b 7. f
2. e 8. g
3. a 9. h
4. d 10. k
5. c 11. j
6. i
MULTIPLE CHOICE
12. B
13. d
14. b
15. d
16. b
17. c
18. d
Critical Thinking
ANALOGIES
1. b 5. a
2. c 6. b
3. d 7. d
4. c 8. c
INTERPRETING OBSERVATIONS
9. THE PASSAGE IS REFERRING TO MUTUALISM, THE PROCESS BY WHICH TWO SPECIES INTERACT IN RESPONSE TO EACH OTHER, FOR THE BENEFIT OF BOTH. THE IMPORTANCE OF LICHENS CAN BE INFERRED BY THEIR WIDE ENVIRONMENTAL DISTRIBUTION AND THE ROLE THEY PLAY IN THE FORMATION OF SOILS, AS WELL AS A SOURCE OF FOOD FOR ANIMALS HIGHER IN THE FOOD CHAIN.
10. If lichens disappeared, the lack of a fundamental producer in the ecosystems of the world would generate a serious imbalance in the environment. Soil production would be affected, and plants would lack essential minerals that come from the breakdown of rocks.
11. It is more difficult to capture public attention with pictures of algae, fungi, and microscopic fragments of rock than it is with pictures of cute, fuzzy creatures. The media tend to focus on such images, fueling misperceptions about where the greatest threats to biodiversity lie.
AGREE OR DISAGREE
12. ACCEPT ANY THOUGHTFUL ANSWER. SAMPLE ANSWERS: DISAGREE; ENDANGERED SPECIES ARE ALREADY AT THE BRINK OF EXTINCTION AND IF FURTHER COMPROMISED WOULD ALMOST CERTAINLY BECOME EXTINCT. AGREE; HUMAN NEEDS ALWAYS TAKE PRIORITY. WE CAN PRESERVE THESE SPECIES THROUGH CAPTIVE-BREEDING PROGRAMS AT ZOOS OR IN GERM-PLASM BANKS.
13. Accept any thoughtful answer. Sample answers: Agree; money given to poorer countries for the protection of potentially valuable species would benefit every country. The United States was right in agreeing to the treaty. Disagree; the treaty should not have placed restrictions on economic and trade agreements and should have given priority to commerce over impact on biodiversity. The United States should not have signed the treaty.
14. Accept any reasonable response. Sample answer: Disagree; some species may need more than 10 percent of an area for their species to survive. Also, it is possible that saving only 10 percent of a biodiversity hotspot may not be enough if the surrounding areas become overstressed from such factors as drought or pest overpopulation.
REFINING CONCEPTS
15. THE GRAY WOLF IS IMPORTANT BECAUSE, AS A PREDATOR, IT HELPS TO MAINTAIN BALANCE IN THIS ECOSYSTEM, KEEPING THE POPULATION OF LARGE AND SMALL MAMMALIAN HERBIVORES IN CHECK. THEREFORE, PRESERVING THE GRAY WOLF HELPS PRESERVE THE ENTIRE ECOSYSTEM.
16. It is possible to study the gray wolf in its habitat to document its diet. One could also review past records kept by ranchers. Ultimately, though, there is
-----------------------
a. keystone species
b. exotic species
c. extinct species
d. endangered species
e. threatened species
f. sustainable land use
g. vertebrates
h. habitat conservation plan
i. insects
j. fungi
k. biodiversity hotspot
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