Question

the supreme court can strike down, or cancel, laws passed by congress. which arrow on the diagram stands for this check on legislative power?

Explanation:

The Supreme Court is part of the Judicial branch, and Congress is part of the Legislative branch. The check where the Judicial (Supreme Court) can strike down Legislative (Congress) laws is represented by the arrow from Judicial to Legislative. Looking at the diagram, the arrow going from the "Judicial" circle to the "Legislative" circle (the one pointing towards Legislative from Judicial) represents this check.

Answer:

The arrow from the "Judicial" circle to the "Legislative" circle (the orange arrow pointing from Judicial to Legislative).