PLEASE HELP You must design a valid experiment to show that there are microorganisms in the air. What would be your dependent variable? (Points : 2) sterilized broth growth of organisms in the broth exposure to microorganisms in the air You must design a valid experiment to show that there are microorganisms in the air. What would be your control group? (Points : 2) open flask with unsterilized broth open flask with sterilized broth sealed flask with unsterilized broth sealed flask with sterilized broth

Question

13-05-2016
Biology

contestada

PLEASE HELP You must design a valid experiment to show that there are microorganisms in the air. What would be your dependent variable? (Points : 2) sterilized broth growth of organisms in the broth exposure to microorganisms in the air You must design a valid experiment to show that there are microorganisms in the air. What would be your control group? (Points : 2) open flask with unsterilized broth open flask with sterilized broth sealed flask with unsterilized broth sealed flask with sterilized broth

Respuesta :

Otras preguntas

Which word correctly completes the sentence? During March that __________ summer schedule is announced. A. theater's B. theaters' C. theaters

The _____ microscope uses multiple glass lenses to help distinguish details of thickness. a. optical b. dark c. electron d. compound

Plot is usually determined by __________ relationships in which one event in the story leads to another, which, in turn, leads to another until the conflict is

in a group of 60 children there are twice as many girls than boys how many girls are there

the simple and rhythm sound of Henry Wadsworth Longfellow 'so The Rain Day are a product of the poem

As a rocket takes off, the gases released push down on the ground, which then pushes the rocket up. true or false

Which is the correct order of events that eventually led to the collapse of the Chinese imperial government? rise of nationalism, Opium Wars, Taiping Rebellion,

Which sentence is punctuated correctly? A. Most people in Brazil speak Portuguese yet others speak Polish and German. B. Raisins are dried grapes, but, they hav

Product of 7/16. 4/3 1/2

Khajja Khajja · Answer 1 · 2016-05-13T17:45:35+02:00

Khajja Khajja

13-05-2016

you can carry out a test ,
1- take a sample of the air in a test tube
2-add limewater to the test tube
3- result : if it turns milky/cloudy it has microorganisms
4- reason: because every microorganism respires , and so it produces Carbon dioxide .
and limewater is the test to show the presence of Carbon dioxide .

Answer Link