![subject](/tpl/images/cats/biologiya.png)
![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)
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 12:30, Diaryyy3986
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
Answers: 1
You know the right answer?
Select all the correct answers.
Which of the following organisms can have all of the energy it uses...
Questions in other subjects:
![Konu](/tpl/images/cats/geografiya.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 01.07.2019 05:00
![Konu](/tpl/images/cats/istoriya.png)
History, 01.07.2019 05:00
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 01.07.2019 05:00