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

Author Question: Which of the following is a true statement about DDT, a synthetic insecticide? A) It leads to a ... (Read 23 times)

KWilfred

  • Hero Member
  • *****
  • Posts: 570
on: Jul 2, 2018
Which of the following is a true statement about DDT, a synthetic insecticide?
 
  A) It leads to a concentration in herbivores.
 B) It affects fertility, causes changes in brain functioning, and increases the incidence of cancer.
 C) It breaks down quickly and lasts in soil for 3-5 years.
 D) It is excreted back into the environment by the organisms that consume it.

Question 2

Over time, closed systems tend to lose their ability to function and can eventually stagnate and die. In systems theory this phenomenon is known as:
 
  a. steady state
  b. equifinality
  c. entropy
  d. synergy


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lorealeza

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 2, 2018
Answer to Question 1

B

Answer to Question 2

c


KWilfred

  • Member
  • Posts: 570
Reply 2 on: Jul 2, 2018
:D TYSM

ryansturges

  • Member
  • Posts: 338
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

true story true story
Adapoids and omomyoids had longer snouts and are the first “true” primates. Adapoids and omomyoids had longer snouts and are the first “true” primates.
Toussaint L’Ouverture leads a revolt of slaves against the French in Haiti—the first and only major Toussaint L’Ouverture leads a revolt of slaves against the French in Haiti—the first and only major
Example of Reconciling a Bank Statement Cont. Example of Reconciling a Bank Statement Cont.
Salvage and de novo synthetic pathways to thymine nucleotides Salvage and de novo synthetic pathways to thymine nucleotides
Synthetic enhancement Synthetic enhancement
Video: Regulation of GFR: three methods, autoregulation & autoregulation via myogenic mechanism

For a complete list of videos, visit our video library