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Answer:</h2>
Option B) Nodules.
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Explanation:</h2>
- It is impossible for plants to fix atmospheric nitrogen(nitrogen present in soil) and hence they absorb nitrogen from the soil in the form of nitrates and ammonium.
- Plant absorbs nitrogen from soil through nodules present on roots.
- In case of leguminous(pulses) plant roots of the plant form a symbiotic association with nitrogen-fixing bacteria for example- Rhizobium.
- On the other hand if nitrates is directly absorbed by the plant, it is taken up by nitrate transporters which uses a proton gradient to power the nitrate to get transported.
- Absorbed nitrogen is transferred from root to shoot by xylem.
Result: Option B) is the correct answer.
Answer: Species can change over time in response to changes in environmental conditions through adaptation by natural selection acting over generations. ... Evolution results primarily from genetic variation of individuals in a species, competition for resources, and proliferation of organisms better able to survive and reproduce.
Explanation:
The type of contraception that works because ovulation is prevented is the birth control pills. Ovulation is when the egg that has left from the ovaries and moved into Fallopian tube, that lastly moves into the uterus, which is the women,s most fertile time of the month when the egg is in the uterus it waits to be fertilized, and when it is not fertilized it is released which leads to periods. Ovulation occurs 14 days after the first day of the menstrual cycle.
A leaf is xylem the of function the is what