« previous next »

Author Question: Net primary (photosynthetic) productivity (NPP) is: A) the carbon fixed by the leaves of the ... (Read 41 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?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Structure of cellulose, the main macromolecule of the primary cell wall Structure of cellulose, the main macromolecule of the primary cell wall
Human of the planet's net primary production and appropriation of NPP Human of the planet's net primary production and appropriation of NPP
Polar Ocean Productivity Polar Ocean Productivity
Covalent bond- carbon rings Covalent bond- carbon rings
Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20.4 min. What ... Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20.4 min. What ...
Ferns disperse by releasing spores that form on the underside of leaves. Ferns disperse by releasing spores that form on the underside of leaves.
Video: Exercise and cardiac output & Definition of stroke volume

For a complete list of videos, visit our video library