Draw the first hand on top and there you go :) hope this helps
The symbols +, -, and 0 are used to show the results of interactions between individuals and groups of individuals. The symbol + denotes a positive interaction, - denotes a negative interaction, and 0 denotes interactions in which individuals are not affected. The first symbol refers to the first organism mentioned.
<h3>What is
interaction?</h3>
A type of activity known as interaction takes place when two or more items have an impact on one another. In contrast to a one-way causal effect, the idea of a two-way effect is crucial to the concept of interaction. Interactivity and interconnection are closely related concepts; the latter deals with the interactions of interactions inside systems; combinations of numerous straightforward interactions might result in unexpected emergent phenomena.
In many sciences, interaction has numerous specialized meanings. A basic interaction in physics is the process by which elementary particles interact with one another. Depending on the interaction, it may also be referred to as a fundamental force. A physical field is frequently used to define an interaction, and gauge exchange serves as its mediator.
To learn more about interaction from the given link:
Answer:
Nitrogen
Explanation:
All living organisms need nitrogen in order to build proteins and build DNA.
Some animals (most) get nitrogen by eating plants I believe.
B. carbon cycle
Carbon cycle is related because of the CO2 gases that creates extreme thermal conditions within the earth's temperature although there are other gases related too.
<span>The carbon cycle is important to all ecosystems as well as the food chain.</span><span>A benefit of the carbon cycle is that it is critical to the food chain. </span><span>Carbon is an important element in living tissues and in all organic matter. All living things are made of carbon.</span>