The figure below shows a simple worm.Bilateral symmetry and a highly branched gastrovascular cavity all suggest that the worm is a(n) ________. 
Definitions:
Solve
To find the solution to a problem or the answer to a question, especially in mathematics.
Solution
A solution in mathematics refers to the value or set of values that satisfy an equation, inequality, or system of equations.
Equation
A mathematical statement that asserts the equality of two expressions, typically containing one or more variables.
Solution
The answer to a problem or the value of a variable that satisfies an equation.
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