Author Question: When a tree or other plant is not affected by the presence of a harmful insect, it is described as ... (Read 40 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
When a tree or other plant is not affected by the presence of a harmful insect, it is described as being:
 
 

a. immune c. engineered
  b. modified d. invulnerable



Question 2

The insecticide DDT has been used to control mosquitoes that carry which disease?
 
 

a. malaria
  b. brucellosis
  c. rabies
  d. encephalitis




amynguyen1221

  • Sr. Member
  • ****
  • Posts: 355
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

For a complete list of videos, visit our video library