FREE AND STUDY GAMES ABOUT E.S. EXAM 2

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FREE AND STUDY GAMES ABOUT E.S. EXAM #2

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -46 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Recombinant DNA ___

Answer:

is the merging of DNA from unrelated organisms to create new genetic varieties

Question 2: Monoculture ___.

Answer:

is an agricultural practice of growing large stands of a single species Question 3: Diminishing population growth rates in poor countries can be partially attributed to ____.

Answer:

Education to women Question 4: Aquatic animals such as fish and frogs are especially good indicators of water pollution because ____

Answer:

Most chemicals are water soluble so they enter these organisms through drinking water or skin absorption

Question 5: The field of conservation biology ____

Answer:

attempts to integrate an understanding of evolution, ecology and extinction Question 6: Declining death rates due to increased food production and improved medical care while birth rates remain high is characteristic of the ____ stage

Answer:

transitional Question 7: Of the following ____ requires the least land to produce 1 kg of protein

Answer:

chicken Question 8: The wood thrush makes its nest in woodlands in the northern and eastern U.S. As patches of woods become smaller, increasing numbers of wood thrush nests have eggs laid in them by the brown-headed cowbird. Cowbirds live in open fields and are nest parasite

Answer:

habitat fragmentation makes it easier for cowbird paratism to occur Question 9: The causes of the current (sixth) mass extinction include all of these, but not ___.

Answer:

earthquakes, tsunamis and forest fires Question 10: Which statement most accurately describes population control efforts in China

Answer:

A One-Child policy that Is enforced through taxation and penalties has successfully controlled population growth Question 11: The most accurate terms describes the trend over the past 50 years for human use of natural resources are ___.

Answer:

increasing and unsustainable

Question 12: ___ are best defined as substances that cause cancer

Answer:

Carcinogens Question 13: Of the following ____ best describes integrated pest management (IPM)

Answer:

biocontrol measures, crop rotation, and habitat diversification Question 14: during the past half-century, global food production has ____ world population growth

Answer:

grown at a faster rate than Question 15: Bullfrog tadpoles are often sold as fish bait, even in areas where they do not occur naturally. When people buy 10 of them and don't use them all, they often dump the remainder into the lake or river. This is an example of

Answer:

Introduced species

Question 16: Prescribed burns would be used in forests ___

Answer:

Are subject to servere wildfires to remove fuel load and stimulate new growth Question 17: ___ classify species using an organism's physical appearance and genetic makeup.

Answer:

Taxonomists

Question 18: Clear-cutting ____

Answer:

removes all trees from an area

Question 19: Researchers have demonstrated that organic farming ____

Answer:

Decreased organic soil losses while giving yields comparable to conventional farming

Question 20: Bisphenol A is ___

Answer:

an estrogen mimc that is used in plastic manufacturing Question 21: The greatest diversity (numbers of different species) of organisms can be found in ____.

Answer:

Insects

Question 22: Deforestation

Answer:

has the greatest impacts in tropical areas and agrid regions

Question 23: The human population is approximately ____

Answer:

• billion

Question 24: Toxicants that interrupt essential biochemical processes in organisms by blocking one or steps in important biochemical reactions are known as ___

Answer:

pathway inhibitors Question 25: Rachel Carson's book Silent Spring primarily focuses on the environmental problems associated with ___

Answer:

pesticide toxicity Question 26: Terracing, contour farming, intercropping, and crop rotation all ___

Answer:

Are techniques for conserving soil resources and fertility

Question 27: Second-growth forests ___

Answer:

are forests establish themselves after virgin timber has been removed from an area