Agree
<h3>Living near nature help you to keep your mood in positive way!!!</h3>
- When i study with nature i feel very good.
- Nature is my best friend!
A it’s selectively permeable
Answer:
Plants can't use N2 as is so the first option is wrong. They do have relationships with bacteria that live in nodules of the root and convert the nitrogen into ammonia, a usable form for the plants. So the second option is correct. There are bacteria living in the soil as well that convert nitrogen to ammonia so technically option 3 is also correct. Again, nitrogen if present in water would be in the form N2 which is not usable by plants so 4 is wrong.
These are correct:
use bacteria to convert nitrogen to usable form
In obtain usable nitrogen compounds from the soil
This study serves as a proof of concept that complete organs
can be grown from harvested stem cells and, when transplanted, achieve normal
function, the authors said, hopefully advancing the field from stem cell
transplantation for organ repair towards full organ replacement.