Final answer:
The statement is true; Scheme often relies on recursion for looping and does not have traditional loop structures like those found in many other programming languages. Instead, constructs such as recursion are preferred for iteration.
Step-by-step explanation:
The statement that Scheme doesn't have a loop structure and that looping is instead achieved through recursion is true. Scheme, a minimalist dialect of the programming language Lisp, is particularly known for its heavy reliance on recursion for iterative processes. While Scheme does have constructs like do and named let, which can be used to perform iterations, idiomatic Scheme often favors recursion for looping, especially in pedagogical contexts. For example, a loop that prints numbers from 1 to 10 in a conventional programming language with explicit loop constructs can be achieved in Scheme using a recursive function:
(define (print-numbers n)
(if (> n 10)
'done
(begin
(display n)
(newline)
(print-numbers (+ n 1)))))
(print-numbers 1)
This function print-numbers calls itself with an incremented value of n until it reaches 11, at which point the recursion terminates.