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22 Mar 2018

For each of the following elements, indicate whether it is a macronutrient, a micronutrient, or neither, and state what its primary function is in plant growth and development.

1) Iron

2) Carbon

3) Nitrogen

4) Zinc

5) Phosphorus

6) Oxygen

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Reid Wolff
Reid WolffLv2
23 Mar 2018
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Related questions

1. Which of the four major biogeochemical cycles aresignificantly affected by human activities?

  1. Water only
  2. None of them
  3. Nitrogen and phosphorus only
  4. carbon only
  5. All of them (water, carbon, nitrogen, and phosphorus)

2. Physical processes like evaporation and condensation are themain driving forces behind the _________ cycle.

  1. phosphorus
  2. water
  3. carbon
  4. nitrogen

3. What is the source of energy that supports the growth of mostproducers?

  1. Calories in food (organic matter)
  2. Carbohydrates and lipids
  3. Heat
  4. Sunlight

4. Which of the following are involved in biogeochemicalcycles?

  1. Living producers
  2. Living consumers
  3. Decomposers and detritivores
  4. Land, air, and water
  5. All of the above

5. Turkey vultures soar high in the sky until they detect deadanimals with their supremely sensitive noses. They then swoop downand eat the dead flesh. Which of the following terms accuratelydescribe turkey vultures? Select all that apply.

  1. producers
  2. consumers
  3. detritivores
  4. decomposers

6. Which human activity reduces transpiration and can reducerainfall in the affected region?

  1. fertilizer use
  2. buring fossil fuels
  3. deforestation
  4. damming rivers

THIS IS PART A OF A QUESTION WITH ITS SUBPARTS

What approach could be used to determine if nitrogen availability in the soil directly limits the nutrient concentration of Metrosideros polymorpha leaves?

a)draining water from experimental plots where M. polymorpha is present
b) adding a known quantity of nitrogen to several experimental plots where M. polymorpha is present
c) removing leaf litter from a non-forested experimental plot and placing it into another where M. polymorpha is present
d) removing leaf litter from several experimental plots where M. polymorpha is present

e) Nutrient concentration in leaves cannot be accurately measured.

Decomposition would be highest in which of the following ecosystems?

a) temperate deciduous forest
b)desert
c) rain forest
d) coniferous (boreal) forest
e) arctic tundra

Which of the following is a result found by Dr. Schuur in this study?

View Available Hint(s)

Which of the following is a result found by Dr. Schuur in this study?

a. Low soil oxygen levels leads to an increase in the rates of decomposition and mineralization.
b. Litter quality has no effect on decomposition.
c. Lower soil nitrogen leads to higher nitrogen concentration in leaves.
d. High precipitation leads to low soil oxygen levels.
e. Increased nitrogen availability is responsible for the decline in net primary productivity across the rainfall gradient within his study area.

Why does soil oxygen concentration have a direct relationship to decomposition rates?

View Available Hint(s)

Why does soil oxygen concentration have a direct relationship to decomposition rates?

a. Soil oxygen reduces the presence of soil fungi (e.g., mycorrhizae).
b. Soil oxygen influences the concentration of carbon dioxide available to leaves.
c. Soil oxygen affects the uptake of nutrients by plant roots.
d. Soil oxygen allows microbes to break down carbon molecules.
e. Soil oxygen affects the uptake of water by plant roots.

The limiting factor on net primary productivity (NPP) in species-rich, lowland ecosystems is __________.

a. carbon

b. nitrogen

c. phosphorus

d. precipitation

e. soil oxygen

A) Give an example of each of the following types of tissue and what kind of function(s) it usually has:

1) Connective

2) Nervous

3) Epithelial

4) Muscular

B) For each of the following hormones, state what its primary function is in the plant and where it is produced.

5) Gibberelin

6) Ethylene

7) Auxin

8) Cytokinin

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