This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In most soils the overall population (numbers) of microorganisms changes with time, generally ... (Read 141 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
on: Jul 22, 2018
In most soils the overall population (numbers) of microorganisms changes with time, generally following changes in the ________.
 
  A) concentrations of antibiotics
  B) availability of root infection sites
  C) porespace
  D) supply of oxygen
  E) supply of decomposable organic matter

Question 2

Vesicles and arbuscules are structures typically formed ________.
 
  A) in bacterial cells when attacked by protozoa.
  B) in root cells by fungi when they form mycorrhizae
  C) above ground by certain soil fungi
  D) by mesofauna when they incorporate organic materials into the soil
  E) none of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sassygurl126

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 22, 2018
Answer to Question 1

E

Answer to Question 2

B


nramada

  • Member
  • Posts: 580
Reply 2 on: Jul 22, 2018
YES! Correct, THANKS for helping me on my review

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Population genetics sample question Population genetics sample question
Projected Ethnic Changes in U.S. Population to 2050 Projected Ethnic Changes in U.S. Population to 2050
Classes of Microorganisms with Descriptions and Examples Classes of Microorganisms with Descriptions and Examples
Limiting factors restrain population growth Limiting factors restrain population growth
Incomplete dominance in flowering time of pea plants Incomplete dominance in flowering time of pea plants
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library