Nitrogen Cycle Bacteria in the root nodules that change nitrogen in a usable form for plants and the plants itself has what kind of symbiotic relationship? __ If something happened to the nitrogen-fixing bacteria , what would happen to plants in regards to nitrogen? __ Carrying Capacity Match the word to the definition: __ 1.The number of organisms an environment can support at a time __ 2.Something that limits the growth of a population __ 3.Mates, Plants, Animals, Fungi Bacteria (living things) __ 4.Sunlight, Space, Air, Water,Rocks (non-living things) __ 5. A non-native organism that when introduced, can cause harm __ 6. To prevent or restrain (to stop) A. Inhibit B. Abiotic factors C. Biotic Factors D. Carrying Capacity E. Invasive species D. Limiting factor

## Step 1<br />The first part of the question is about the nitrogen cycle and the symbiotic relationship between nitrogen-fixing bacteria and plants. Nitrogen-fixing bacteria are found in the root nodules of leguminous plants. These bacteria convert atmospheric nitrogen into a form that plants can absorb and use, such as ammonia or nitrate. This process is known as nitrogen fixation. The relationship between the bacteria and the plants is mutualistic, as the bacteria benefit from the plant's sugars, while the plants benefit from the nitrogen compounds produced by the bacteria.<br /><br />## Step 2<br />If something happened to the nitrogen-fixing bacteria, plants would struggle to obtain the nitrogen they need for growth. This could lead to a decrease in plant growth and productivity.<br /><br />## Step 3<br />The second part of the question is about the concept of carrying capacity in ecology. Carrying capacity refers to the maximum number of individuals of a particular species that an environment can support. This is determined by the availability of resources such as food, water, and space.<br /><br />## Step 4<br />The definitions provided in the question are matched to the correct terms. The number of organisms an environment can support at a time is referred to as the carrying capacity. Something that limits the growth of a population is known as a limiting factor. Mates, plants, animals, fungi, and bacteria are considered biotic factors, while sunlight, space, air, water, and rocks are considered abiotic factors. A non-native organism that can cause harm when introduced is known as an invasive species. To prevent or restrain something is to inhibit it.