Does anyone know im trying to answer this but im not sure
...
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 21:30
What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 23:00
What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:40
The body of water found at number 4 on the map above is the
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 11:30
According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.03.2021 23:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:40
![question](/tpl/images/cats/istoriya.png)
History, 17.03.2021 23:40
![question](/tpl/images/cats/en.png)
English, 17.03.2021 23:40
![question](/tpl/images/cats/istoriya.png)
History, 17.03.2021 23:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.03.2021 23:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.03.2021 23:40
![question](/tpl/images/cats/mat.png)
Mathematics, 17.03.2021 23:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)