« previous next »

Author Question: You observe a fish-eating osprey bird with its chicks near Everglades National Park. What commonly ... (Read 93 times)

abc

  • Hero Member
  • *****
  • Posts: 543
on: Jul 16, 2018
You observe a fish-eating osprey bird with its chicks near Everglades National Park. What commonly used pesticide nearly caused the extinction of this and other large predatory bird species in the 1970s?
 
  A) Malathion
  B) Round Up
  C) DDT
  D) Pyrethroids

Question 2

Which of the following best illustrates bias in scientific investigations?
 
  A) Investigations of the cause of AIDS are limited by our inability to see viruses.
  B) Investigations of the health effects of smoking are funded and published by a tobacco company.
  C) Researchers studying heron nests notice that some baby herons fall out of nests and are killed.
  D) An experiment testing the effect of a new drug has only one control group.


joneynes

  • Sr. Member
  • ****
  • Posts: 376
Reply #1 on: Jul 16, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

A lobe-finned fish, the coelacanth (Latimeria chalumnae) A lobe-finned fish, the coelacanth (Latimeria chalumnae)
Eating is a nutritional as well as a social time Eating is a nutritional as well as a social time
Chimpanzees in nearby Mahale National Park practice a different grooming style: they clasp hands whi Chimpanzees in nearby Mahale National Park practice a different grooming style: they clasp hands whi
Video: Homologous chromosomes during prophase I - Animation

For a complete list of videos, visit our video library