Nitrogen is an essential nutrient for plant growth, but it is often limited in nature. Plants must obtain nitrogen from their environment, typically through uptake from soil or water sources. In some cases, plants can form symbiotic relationships with nitrogen-fixing bacteria to acquire nitrogen, but this is not a universal trait among all plants.

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Plants in Nature

Question 42

Multiple Choice

Plants in nature

A) usually have unlimited nitrogen supplies.
B) usually have limited nitrogen supplies.
C) usually can fix nitrogen from the air.
D) do not display symptoms when nitrogen is deficient.
E) have yellow older leaves when nitrogen is overabundant.

Correct Answer: