How are the governments in Brazil and the United States similar?

The similarities between the governments of Brazil and the United States include:

1. A president heads the executive branch: Both countries have a presidential system where the president serves as the head of state and government.

2. Each political party selects a presidential candidate before the election: In both Brazil and the United States, political parties conduct primaries or conventions to select their candidates for the presidential election.

However, the statement "Voting is required by law" applies specifically to Brazil, where voting is mandatory, while in the United States, voting is not mandatory. Additionally, "The judicial branch appoints members to the legislature" is not accurate for either country, as the legislative branch is elected by the public in both cases.

So, the correct similarities would be the first two points listed above.

The correct answer, highlighting a similarity between the governments of Brazil and the United States, is:

A president heads the executive branch.

This is a defining feature of both countries' political systems.