AGN 115 MSU Exam 2 questions and
answers passed
According to the Soil Science Society of America's definition, mined materials such as Chilean
nitrate and manure from animals (e.g. chicken poop) are both considered "fertilizers". (Lec. 6)
A. True
B. False - correct answer ✔✔A. True
___ are drawbacks (undesirable characteristics) associated with the surface application of
manures. (Ch. 8)
A. Odor
B. Insects
C. Nitrogen loss through ammonification
D. All are correct
E. Both A and B - correct answer ✔✔D. All are correct
One example of how genetic engineering was used to produce a crop intended to improve
human nutrition in developing countries was ___. (Ch. 15 and Lec. 5)
A. "golden" rice
B. Bt corn
C. Roundup Ready soybean
D. All of the above
E. None of the above - correct answer ✔✔A. "golden" rice
,The genetic base of agriculture has narrowed as human societies have become increasingly
dependent on a few species of food-producing organisms and a reduced number of genes and
genetic combinations. (Ch. 15)
A. True
B. False - correct answer ✔✔A. True
After land is put into cultivation (i.e. tilled), the original soil organic matter level begins to
decline. Resulting changes include ____. (Ch. 8)
A. Loss of structure
B. Increase in bulk density
C. Decrease in soil porosity
D. Decrease in biological activity
E. All of the above - correct answer ✔✔E. All of the above
When grain is harvested from a field, ___ amounts of N, P and K are removed. (Lec. 5)
A. insignificant
B. small
C. significant
D. both A and B - correct answer ✔✔C. significant
A plant with which of the following genotypes will exhibit heterosis or hybrid vigor? (Each letter
represents a different gene; different alleles are represented by upper and lower case.)
, A. AABBCCDD
B. aabbccdd
C. AaBbCcDd
D. AAbbCCdd - correct answer ✔✔C. AaBbCcDd
The result of genetic information of an individual interacting with the environment is called its
____. (Ch. 15)
A. Alphatype
B. None of the given answers are correct
C. Genotype
D. Phenotype
E. Betatype - correct answer ✔✔D. Phenotype
Before contact with Europeans, all of the following domesticated crops might have been a part
of a Central or South American's diet except ______. (Lec 6, Ch 15)
A. Barley
B. Potato
C. Squash
D. Bean
E. Maize - correct answer ✔✔A. Barley
Among common domesticated livestock, manure from ____ contains the lowest level of water,
which makes it more economical to transport for use as a fertilizer. (Lec. 6)
A. Sheep
answers passed
According to the Soil Science Society of America's definition, mined materials such as Chilean
nitrate and manure from animals (e.g. chicken poop) are both considered "fertilizers". (Lec. 6)
A. True
B. False - correct answer ✔✔A. True
___ are drawbacks (undesirable characteristics) associated with the surface application of
manures. (Ch. 8)
A. Odor
B. Insects
C. Nitrogen loss through ammonification
D. All are correct
E. Both A and B - correct answer ✔✔D. All are correct
One example of how genetic engineering was used to produce a crop intended to improve
human nutrition in developing countries was ___. (Ch. 15 and Lec. 5)
A. "golden" rice
B. Bt corn
C. Roundup Ready soybean
D. All of the above
E. None of the above - correct answer ✔✔A. "golden" rice
,The genetic base of agriculture has narrowed as human societies have become increasingly
dependent on a few species of food-producing organisms and a reduced number of genes and
genetic combinations. (Ch. 15)
A. True
B. False - correct answer ✔✔A. True
After land is put into cultivation (i.e. tilled), the original soil organic matter level begins to
decline. Resulting changes include ____. (Ch. 8)
A. Loss of structure
B. Increase in bulk density
C. Decrease in soil porosity
D. Decrease in biological activity
E. All of the above - correct answer ✔✔E. All of the above
When grain is harvested from a field, ___ amounts of N, P and K are removed. (Lec. 5)
A. insignificant
B. small
C. significant
D. both A and B - correct answer ✔✔C. significant
A plant with which of the following genotypes will exhibit heterosis or hybrid vigor? (Each letter
represents a different gene; different alleles are represented by upper and lower case.)
, A. AABBCCDD
B. aabbccdd
C. AaBbCcDd
D. AAbbCCdd - correct answer ✔✔C. AaBbCcDd
The result of genetic information of an individual interacting with the environment is called its
____. (Ch. 15)
A. Alphatype
B. None of the given answers are correct
C. Genotype
D. Phenotype
E. Betatype - correct answer ✔✔D. Phenotype
Before contact with Europeans, all of the following domesticated crops might have been a part
of a Central or South American's diet except ______. (Lec 6, Ch 15)
A. Barley
B. Potato
C. Squash
D. Bean
E. Maize - correct answer ✔✔A. Barley
Among common domesticated livestock, manure from ____ contains the lowest level of water,
which makes it more economical to transport for use as a fertilizer. (Lec. 6)
A. Sheep
