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
Answers:
#1:
The process that takes place in the stroma in both sunlight and darkness is the Calvin cycle. In sunlight and darkness the Calvin cycle produces a light dependent reaction which then produces ATP and NADPH. Even in darkness the process will still be able to undergo completion. If it has been dark for too long there will not be enough ATP and NADPH to continue sugar production.
#2:
Pyruvate: If there is any oxygen molecules produced in glycolysis will be passed to the Kreb cycle but when there isnt enough oxegen the transport chain wont run which mean fermentation will occur since the NADH molecules have nowhere to go.
NADH: Will go into electron transport.
ATP: Stores energy for a period of time.
#3:
Mitosis and cytokinesis both go through cell division and during mitosis chromatis divides into daughter cells meanwhile cytokinesis has one cell split into two. Without cytokinesis, mitiosis would still happen but only create two nucli in one cell and if cytokinesis happens the cell would die.
Answer:
He founded the strongest evidence for the evolution theory.
Explanation:
Charles Darwin is known as the father of evolution. He explained theory of natural selection and its important role in evolution. The Darwin went on Galapagos Island with his ship HMS beagle.
Darwin returned after 23 years and published his book On the Origin of Species. Darwin Took long time because he had realized that his ideas on the theory of evolution is revolutionary and need time to build the evidence. The collection of evidence for the presentation of the strongest for the role of natural selection in evolution.
Curiosity, honesty, openness
