« previous next »

Author Question: What makes a weed a noxious weed? What will be an ideal ... (Read 110 times)

olgavictoria

  • Hero Member
  • *****
  • Posts: 528
on: Jul 21, 2018
What makes a weed a noxious weed?
 
  What will be an ideal response?

Question 2

Identify three of the ways in which herbicides work.
 
  What will be an ideal response?


iceage

  • Guest
Reply #1 on: Jul 21, 2018
Answer to Question 1

Noxious weeds are the weeds that are the most difficult to control and cause the biggest problem in a particular region or climate.

Answer to Question 2

Herbicides work by:

1 . Interfering with photosynthesis
2 . Inhibiting amino acids and protein
3 . Blocking cell division (mitotic poisoning)
4 . Blocking pigment formation
5 . Causing uncontrolled growth of plant cells through the application of large quantities of auxins, which block the tissues that transport food and water


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

olgavictoria

  • Hero Member
  • *****
  • Posts: 528
Reply #2 on: Jul 21, 2018
Both answers were spot on, thank you once again


iceage

  • Guest
Reply #3 on: Jul 21, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

The stability of carbon bonds makes life possible even in extreme environments The stability of carbon bonds makes life possible even in extreme environments
Sweet joe-pye weed Sweet joe-pye weed
What are examples of ideal forms? What are examples of ideal forms?
Most PCV valves used on newer vehicles are secured with fasteners, which makes it more difficult ... Most PCV valves used on newer vehicles are secured with fasteners, which makes it more difficult ...
If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas? If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas?
The capsule of the fruit of the jimson weed, Datura stramonium The capsule of the fruit of the jimson weed, Datura stramonium
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library