Answer:
The cardio-respiratory system works together to get oxygen to the working muscles and remove carbon dioxide from the body. During exercise the muscles need more oxygen in order to contract and they produce more carbon dioxide as a waste product.
Explanation:
According to a source, the answer to this question is by compacting the soil, decreasing aeration and infiltration. With this process in mind, the plant would be able to survive.
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so, an example of something that might not be a substrate is the animal itself.
explanation
substrate is the surface of where living animals, live.
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Answer:
Identify all the entities in the system. An entity should appear only once in a particular diagram. ...
Identify relationships between entities. Connect them using a line and add a diamond in the middle describing the relationship.
Add attributes for entities.
Explanation: