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Where does most of Earth's nitrogen exist?
The answer is "in the atmosphere."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
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Nitrites and nitrates in the soil are converted by bacteria into a form usable by plants through the process of ______.
The answer is "fixation."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
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Nitrogen can be changed into a form plants can use by which of these?
The answer is "all of these."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
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According to this diagram, what must happen to amino acids, ammonia, and urea before they can be used by plants?
The answer is "some quantities are already usable" because there is an arrow showing the direction of matter straight to plants from amino acids, ammonia, and urea.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
When animals die what happens to the nitrogen in their bodies?
The answer is "decomposers help break it down into a form usable by plants."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
What is eutrophication and how is it caused?
The answer is "Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
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True or false: Atmospheric nitrogen is easily taken up and used by plants and animals.
The answer is "false." Most of the nitrogen in the atmosphere is unavailable for use by organisms. In order for plants and animals to be able to use nitrogen, N2 gas must first be converted to a different form.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
What do organisms primarily use nitrogen for?
The answer is "production of proteins." The ammonia produced by nitrogen fixing bacteria is used to make proteins.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
How do synthetic fertilizers effect the nitrogen cycle?
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
What process belongs in the blank in the image?
The answer is "assimilation."Organisms like plants, fungi and certain bacteria that cannot fix nitrogen gas (N2) depend on the ability to assimilate nitrate or ammonia for their needs.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
Where does most of Earth's nitrogen exist?
The answer is "in the atmosphere."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
Nitrites and nitrates in the soil are converted by bacteria into a form usable by plants through the process of ______.
The answer is "fixation."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
Nitrogen can be changed into a form plants can use by which of these?
The answer is "all of these."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
According to this diagram, what must happen to amino acids, ammonia, and urea before they can be used by plants?
The answer is "some quantities are already usable" because there is an arrow showing the direction of matter straight to plants from amino acids, ammonia, and urea.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
When animals die what happens to the nitrogen in their bodies?
The answer is "decomposers help break it down into a form usable by plants."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
What is eutrophication and how is it caused?
The answer is "Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off."
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
True or false: Atmospheric nitrogen is easily taken up and used by plants and animals.
The answer is "false." Most of the nitrogen in the atmosphere is unavailable for use by organisms. In order for plants and animals to be able to use nitrogen, N2 gas must first be converted to a different form.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
What do organisms primarily use nitrogen for?
The answer is "production of proteins." The ammonia produced by nitrogen fixing bacteria is used to make proteins.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
How do synthetic fertilizers effect the nitrogen cycle?
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above
What process belongs in the blank in the image?
The answer is "assimilation."Organisms like plants, fungi and certain bacteria that cannot fix nitrogen gas (N2) depend on the ability to assimilate nitrate or ammonia for their needs.
The nitrogen cycle describes the flow of the element nitrogen on Earth. Most of Earth’s nitrogen exists in the atmosphere, but it can be moved into the soil through a process called “fixation.” Fixation usually occurs with the help of bacteria, but can also be done by lightning. Bacteria help nitrites and nitrates change into a form of nitrogen used by plants to help them grow. Animals get their nitrogen by eating plants. Animal waste contains nitrogen but needs to be fixed by bacteria as well. Additionally, when animals die their nitrogen reserves are broken down by decomposers where it can again be used by plants. Denitrification is the process where nitrogen in the soil returns to the atmosphere as a gas.
Compare your answer with the correct one above