PLEASE HELP ME OUT WITH THIS QUESTION PLEASE AND THANK YOU (science)

Why do skeletal muscles work in pairs?

One tightens and the othe relaxes to make the bones move.

Multiple muscles have to tighten to make joints move.

They cancel each other out.

Bones are resistant to movement.
(no guessing please☆)

What was the focus of debate about the war at the second

Speaker 1: now that we are independent, americans should create a government that mirrors the government of great britain. speaker 2: after experiencing a tyranny of great britain, americans know how important it is to limit the government's power. speaker 3: our victory in the revolutionary war prove that americans have wisdom to choose good leaders. speaker 4: as for former colonies, the american states are likely to thrive under a system of strong centralized government. which speaker would most likely support the government established by the articles of confederation? a. speaker 2 b. speaker 3 c. speaker 1 d. speaker 4

Sociology is best described as the systematic study of