Explanation:
All living thing are biotic but not all biotic things have to have
Answer:
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Explanation:
Yes, this is true because some bacteria in our environment tends to either fend off of or kill other types of bacteria. In this case, this bacteria is helpful because it turns gaseous nitrogen into a form that can be absorbed and used by plants in our environment.
It can cost more than gasoline powered vehicles
With vertebrates, all energy needs are met through the intake of nutrients in the food they eat. Of the options listed, "Several lions fight over a recent animal kill." Since the kill the the source of nutrients, it is also the source of energy. The fact that the lions are fighting implies competition. Since they are fighting for food, they are competing for energy.