![Biology](/tpl/images/cats/biologiya.png)
Biology, 19.03.2020 02:23, theamandawhite
In an experiment, a culture of Euglena is placed in a petri dish, and a piece of cardboard with a circle cut
out of its center is placed over the petri dish, allowing light to enter only the center of the petri dish.
After 30 minutes, the cardboard is removed, and the culture is observed.
WWhich of the following BEST describes the appearance of the Euglena culture after the 30 minutes?
A) The petri dish has a uniform light green color, indicating the Euglena
Culture have spread out across the dish.
B.) The petri dish has a concentrated dark green area where the circle was,
indicating that the Euglena culture moved toward the light source. C.) The Petri dish has a concentrated light green area where the circle was, indicating that the euglena culture was moved away from the light source D.) The Petri dish has a dark green ring around the perimeter of the Petri dish, indicating that the euglena culture moved to the edges where the light was the strongest
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 19:30, khoadominh2206
Place the steps tor the formation of the enzyme pepsinogen in correct order
Answers: 1
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 00:50, ellaemtagedeane
How does deforestation affect the water cycle? a. it increases the amount of runoff b. it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff
Answers: 1
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:10, dpazmembreno
(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.
Answers: 1
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:50, isabelgarcia188
The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.
Answers: 1
Do you know the correct answer?
In an experiment, a culture of Euglena is placed in a petri dish, and a piece of cardboard with a ci...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 07.09.2021 19:20
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 07.09.2021 19:20
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/es.png)
Spanish, 07.09.2021 19:20
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/geografiya.png)
Geography, 07.09.2021 19:20
![Konu](/tpl/images/cats/obshestvoznanie.png)