Biology 5090 · O Level · Specialised cells, tissues and organs

Specialised cells, tissues and organs — practice question

The diagram illustrates several of the bones and muscles in a human arm. Which option correctly describes the changes that make the forearm rise?

  • AThe biceps muscle at 1 contracts.
  • BThe biceps muscle at 2 contracts.
  • CThe triceps muscle at 1 contracts.
  • DThe triceps muscle at 2 contracts.

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