![subject](/tpl/images/cats/biologiya.png)
Biology, 08.06.2021 17:20 nyceastcoast
What happens when light energy excites electrons in photosystem 2?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 18:30, smelcher3900
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 00:00, jazlynreyes
Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.
Answers: 1
![image](/tpl/images/cats/biologiya.png)
You know the right answer?
What happens when light energy excites electrons in photosystem 2?...
Questions in other subjects:
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 13.02.2020 22:44