what are the 2 sets of blood vessels
what are the 2 sets of blood vessels
A proportion.
antagonistic
They are called the intercostal muscles
Muscles never "push"; they can only "pull".The only power that muscles have is to contract or relax. When they contract, they pull. Most bones have two or more sets of muscles, and each muscle pulls in one direction; in sets, the muscles can work together or oppose each other, which account for all the actions that an animal or person can perform.
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uranus
Muscles that work together are call synergists. Those that work opposite are called antagonists.
Two sets are said to be equivalent if the elements of each set can be put into a one-to-one relationship with the elements of the other set.
Two sets of numbers that have each number has a number that matches with it in the other set.
It could be called an equivalence relationship.