Question

Which statement about plants with nitrogen-fixing bacteria is true?

a. They often play major roles in early succession
b. There is only one type of nitrogen-fixing bacteria associated with plants
c. They are also referred to as mycorrhizae
d. All of the above

Answer 1

Plants with nitrogen-fixing bacteria often play major roles in early succession. There are various types of nitrogen-fixing bacteria associated with plants. These bacteria form symbiotic relationships with plants, providing them with fixed nitrogen in exchange for nutrients.

Step-by-step explanation:

The statement d. All of the above is true. Plants with nitrogen-fixing bacteria often play major roles in early succession as they can survive and grow in nutrient-poor environments. There is not only one type of nitrogen-fixing bacteria associated with plants, but there are various species such as rhizobia and mycorrhizae. These bacteria form symbiotic relationships with plants, providing them with fixed nitrogen in exchange for photosynthates or other nutrients.