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CLEP Biology: Social Biology
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CLEP Biology: Social Biology
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25 Questions

1. Human populations can be broken down into three age groups: ________ - reproductive - and postreproductive

2. __________ _________ limits population size. The effects of environmental resistance become more pronounced as the population approaches this number.

3. This evolutionary theory gave biological foundation to the principle of a freely competitive market: or _________ __________.

4. Predator release is common where humans hunt - trap - or otherwise reduce predator populations - allowing the ______ population to increase.

5. Human action is causing the ____________ of species at thousands of times the natural rate.

6. ____________ companies have gained far greater control over the production chain than was true of the seed companies that predated them.

7. The ________ potential of a population is the maximum growth rate under ideal conditions.

8. Human populations have continued to increase - due to use of ___________ that has disrupted natural populations.

9. A _____________ is a constituent element of the DNA molecule. There are 3.5 billion of them in humans - separated into four categories: adenines - guanines - cytosines and thymines.

10. The _______-___________ countries (mdcs) doubled their populations between 1850 and 1950 - due to a decline in the death rate and improved living conditions.

11. Pollutants generally are releases of substances into the air and water. Many lakes often have nitrogen and phosphorous as limiting nutrients for aquatic and terrestrial plants. Runoff from agricultural fertilizers increases these nutrients - leading

12. Reluctance to recognize this field as ____________ has become popular in the anti-globalization movement and safe trade movement - and is also widely held by most Green parties - and the major parties of France and Germany - which have resisted any a

13. _________ population growth occurs in two cases. 1. ZPG = high birth rates - high death rates 2. ZPG = low birth rates - low birth rates

14. ___________ of exotic or alien non-native species into new areas is perhaps the greatest single factor to affect natural populations.

15. Genetic __________ is the artificial assembly of DNA fragments of different origin - made possible by the tools of genetic engineering.

16. By _____________ - when a predator population increases or becomes more efficient at killing the prey - the prey population may decline or go extinct.

17. Loss of function - or __________ experiments - are those in which an organism is engineered to lack one or more genes. This allows the experimenter to analyze the defects caused by this mutation - and can be considerably useful in unearthing the func

18. ___________ _____ (d) is calculated by dividing the demographic constant by the growth rate.

19. Humans can remove or alter the _________ on population sizes - with both good and bad consequences.

20. The ________ _____ is determined by the birth rate and the death rate of a population - usually per 1 -000 individuals.

21. The ______-_________ countries (ldcs) have a higher growth rate than the mdcs. That rate peaked in the early 1960s.

22. ________________ of populations leads to possible outcomes: population growth as previous limits are removed - population decline as new limits are imposed

23. On a positive note - human-induced population ____________ can provide needed resources for growing human populations.

24. Habitat _________ is the disturbance of the physical environment of a species - for example cutting a forest or draining wetlands.

25. During _____________ extinction - loss of food species can cause migration or extinction of any species that depends largely or solely on that species as a food source.

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