This topic contains a solution. Click here to go to the answer

Author Question: Biological control of pests involves using ____ as a control. a. people c. natural predators b. ... (Read 155 times)

james

  • Hero Member
  • *****
  • Posts: 573
Biological control of pests involves using ____ as a control.
 
 

a. people c. natural predators
  b. tilling d. pesticides



Question 2

The primary harvesting machine for field crops is the:
 
 

a. plow c. baler
  b. rototiller d. combine




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cloudre37

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

C

Answer to Question 2

D




james

  • Member
  • Posts: 573
Reply 2 on: Jul 21, 2018
Great answer, keep it coming :)


smrtceo

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Gracias!

 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

For a complete list of videos, visit our video library