AGRONOMY EXAM #4 REVIEW QUESTIONS AND ANSWERS
The most common gymnosperms are
A. Flowering plants
B. Fruit trees
C. Pine trees
D. Oak trees - correct answer C
Monocots have:
A. Tap roots
B. Bifurcated roots
C. Fibrous roots
D. Adventitious roots - correct answer C
Monocots have:
A. No vascular bundles
B. Vascular bundles in a ring near edge
C. Scattered vascular bundles
D. Opaque vascular bundles - correct answer C
Dicots have:
A. Tap roots
B. Bifurcated roots
C. Fibrous roots
D. Adventitious roots - correct answer A
Dicots have:
A. No vascular bundles
B. Vascular bundles in a ring near edge
C. Scattered vascular bundles
D. Opaque vascular bundles - correct answer B
High genetic diversity is a common characteristic of plants in a:
A. Natural ecosystem
B. Agroecosystem
C. Depends upon the system
D. No difference between a natural and an agroecosystem - correct answer A
Agroecosystems are systems in which nutrients are removed and/or replaced by the
producer. This is also known as:
A. Closed system
B. Open system
C. Abiotic system
D. Biotic system - correct answer B
Which of the following would not be a biotic factor?
, A. Pathogens
B. Worms
C. Organic Matter
D. Insects - correct answer C
Natural ecosystems are characterized by having:
A. High productivity
B. Short life
C. Closed nutrient system
D. Synchronized flowering - correct answer C
Which of the following is NOT a characteristic of an agroecosystem?
A. High productivity
B. High stability
C. Closed nutrient system
D. Synchronized flowering - correct answer B
High stability is characteristic of:
A. Natural ecosystems
B. Agroecosystems
C. Neither
D. Both - correct answer A
Agroecology is:
A. The study of relationships between all living things to their environment and to each
other.
B. The total interaction between all organisms that live in an area with each other and
their environment.
C. Study of specific relationships of crops and farm animals to the environment and to
each other.
D. The total interaction between crops and farm animals and their environment. - correct
answer C
The interaction between two or more different organisms living in close physical
association is called?
A. Competition
B. Biotic interaction
C. Ecology
D. Symbiosis - correct answer D
Stability is lower in an agroecosystem compared to a natural system due to:
A. Most growth factors are influenced by the producer
B. Organisms are not able to readily adapt to sudden environmental changes of pest
infestations due to a limited gene pool
C. There are several other species competing for the same resources
The most common gymnosperms are
A. Flowering plants
B. Fruit trees
C. Pine trees
D. Oak trees - correct answer C
Monocots have:
A. Tap roots
B. Bifurcated roots
C. Fibrous roots
D. Adventitious roots - correct answer C
Monocots have:
A. No vascular bundles
B. Vascular bundles in a ring near edge
C. Scattered vascular bundles
D. Opaque vascular bundles - correct answer C
Dicots have:
A. Tap roots
B. Bifurcated roots
C. Fibrous roots
D. Adventitious roots - correct answer A
Dicots have:
A. No vascular bundles
B. Vascular bundles in a ring near edge
C. Scattered vascular bundles
D. Opaque vascular bundles - correct answer B
High genetic diversity is a common characteristic of plants in a:
A. Natural ecosystem
B. Agroecosystem
C. Depends upon the system
D. No difference between a natural and an agroecosystem - correct answer A
Agroecosystems are systems in which nutrients are removed and/or replaced by the
producer. This is also known as:
A. Closed system
B. Open system
C. Abiotic system
D. Biotic system - correct answer B
Which of the following would not be a biotic factor?
, A. Pathogens
B. Worms
C. Organic Matter
D. Insects - correct answer C
Natural ecosystems are characterized by having:
A. High productivity
B. Short life
C. Closed nutrient system
D. Synchronized flowering - correct answer C
Which of the following is NOT a characteristic of an agroecosystem?
A. High productivity
B. High stability
C. Closed nutrient system
D. Synchronized flowering - correct answer B
High stability is characteristic of:
A. Natural ecosystems
B. Agroecosystems
C. Neither
D. Both - correct answer A
Agroecology is:
A. The study of relationships between all living things to their environment and to each
other.
B. The total interaction between all organisms that live in an area with each other and
their environment.
C. Study of specific relationships of crops and farm animals to the environment and to
each other.
D. The total interaction between crops and farm animals and their environment. - correct
answer C
The interaction between two or more different organisms living in close physical
association is called?
A. Competition
B. Biotic interaction
C. Ecology
D. Symbiosis - correct answer D
Stability is lower in an agroecosystem compared to a natural system due to:
A. Most growth factors are influenced by the producer
B. Organisms are not able to readily adapt to sudden environmental changes of pest
infestations due to a limited gene pool
C. There are several other species competing for the same resources
