« previous next »

Author Question: Net primary (photosynthetic) productivity (NPP) is: A) the carbon fixed by the leaves of the ... (Read 80 times)

newbem

  • Hero Member
  • *****
  • Posts: 579
on: Jul 22, 2018
Net primary (photosynthetic) productivity (NPP) is:
 
  A) the carbon fixed by the leaves of the plant and not secondary photosynthesizing organs.
  B) the amount of biomass that goes into the harvested part of the plant.
  C) carbon fixed plus the amount given off through respiration.
  D) carbon fixed minus the amount given off through respiration.

Question 2

When returned to the soil after harvest, plant parts such as corn stalks and grape and apple leaves provide ________ material but very little N, P, K for subsequent crops.
 
  A) inorganic B) soluble C) organic D) nutrient-rich


frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 22, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Soil and the Carbon Cycle Soil and the Carbon Cycle
Antineutrophil cytoplasmic antibody staining patterns. Indirect immunofluorescence of ethanol-fixed ... Antineutrophil cytoplasmic antibody staining patterns. Indirect immunofluorescence of ethanol-fixed ...
Reactions in assimilation of ammonia and major fates of the fixed nitrogen Reactions in assimilation of ammonia and major fates of the fixed nitrogen
Forms of primary adult glaucoma Forms of primary adult glaucoma
carbon cycle carbon cycle
Primary growth in a root Primary growth in a root
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library