PCB 3044 - Exam 4 (Final)
Comprehensive Questions
(Frequently Tested) and Complete
Solutions Graded A+
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Which systems would allocate more primary production to roots?
why? - Answer: Systems with higher soil, water, and nutrient
availability because of the acquisition of the resources that are in
short supply
,Which systems would allocate more primary production to leaves
and stems? Why? - Answer: plants growing in dense communities
with neighbors that may shade them may allocate NPP in order to
capture more sunlight for photosynthesis
Which successional stages usually have the highest levels of net
primary production? - Answer: Mid-successional stages
Which locations have the highest amounts of primary
productions? Why? - Answer: Tropics (due to high availability of
climate) and Coastal Areas (due to upwelling -- absorption and
reflection of light)
Which locations have the lowest amounts of primary
productions? Why? - Answer: NPP decreases with the variation of
climate when moving to the North or South (due to latitudinal
gradients in temp and precipitation)
How is primary production measured? - Answer: Measured by
the amount of carbon in a system, produced by autotrophs
(photosynthesis and chemosynthesis)
, Direct measures of primary production: - Answer: Net Ecosystem
Exchange (NEE), which measures GPP and respiration to calculate
net exchange of CO2
Indirect measures of primary production: - Answer: Remote
sensing through satellite scanning
Gross Primary Production: - Answer: Amount of carbon fixed by
autotrophic organisms in an ecosystem, controlled by the rate of
photosynthesis and leaf area index
Net Primary Production - Answer: Energy produced by autotrophs
and stored as biomass (NPP = GPP - respiration)
Carbon Source - Answer: GPP < respiration
Carbon Sink - Answer: GPP > respiration
What systems have higher consumption rates of primary
production? Why? - Answer: Producers (autotrophs) have the
highest consumption rate because they generate dead organisms,
chemical energy, and plants
Comprehensive Questions
(Frequently Tested) and Complete
Solutions Graded A+
Professional Academic Assistance Services
Services Offered
• Proctored Exam Assistance
• Online Class Management (Full Course Support)
• Exam Preparation & Study Materials
• Assignments and Coursework Support
• Essay and Research Paper Writing
• Discussion Posts & Responses
• Editing and Proofreading
• Confidential Academic Consultation
Contact Information
Email:
WhatsApp link: https://wa.me/254704846336
Fast Response | Confidential | Reliable Academic Support
Helping Students Achieve Academic Excellence
Which systems would allocate more primary production to roots?
why? - Answer: Systems with higher soil, water, and nutrient
availability because of the acquisition of the resources that are in
short supply
,Which systems would allocate more primary production to leaves
and stems? Why? - Answer: plants growing in dense communities
with neighbors that may shade them may allocate NPP in order to
capture more sunlight for photosynthesis
Which successional stages usually have the highest levels of net
primary production? - Answer: Mid-successional stages
Which locations have the highest amounts of primary
productions? Why? - Answer: Tropics (due to high availability of
climate) and Coastal Areas (due to upwelling -- absorption and
reflection of light)
Which locations have the lowest amounts of primary
productions? Why? - Answer: NPP decreases with the variation of
climate when moving to the North or South (due to latitudinal
gradients in temp and precipitation)
How is primary production measured? - Answer: Measured by
the amount of carbon in a system, produced by autotrophs
(photosynthesis and chemosynthesis)
, Direct measures of primary production: - Answer: Net Ecosystem
Exchange (NEE), which measures GPP and respiration to calculate
net exchange of CO2
Indirect measures of primary production: - Answer: Remote
sensing through satellite scanning
Gross Primary Production: - Answer: Amount of carbon fixed by
autotrophic organisms in an ecosystem, controlled by the rate of
photosynthesis and leaf area index
Net Primary Production - Answer: Energy produced by autotrophs
and stored as biomass (NPP = GPP - respiration)
Carbon Source - Answer: GPP < respiration
Carbon Sink - Answer: GPP > respiration
What systems have higher consumption rates of primary
production? Why? - Answer: Producers (autotrophs) have the
highest consumption rate because they generate dead organisms,
chemical energy, and plants
