How do your arm muscles work to lift a mug of coffee to your lips?

1.the biceps muscle contracts while the triceps muscle relaxes. only then can the forearm move up to lift the mug.
2.the muscle tendons in your arms stretch to their limit as a result of the flexibility exercises that lift the mug.
3.your muscles rapidly increase the speed at which they twitch to trigger your arm movement.
4.your biceps and triceps muscles first relax, and then the arm muscle raises the mug.

Jim and phil are changing the oil in jim’s car. jim is trying to remember all the actions involved in changing the oil. phil is trying to remember the first time he ever changed the oil in his car. jim is trying to recall a memory and phil is trying to recall a(n) memory.

Josie decided to redecorate her son’s room. he is a toddler now and needs a bed instead of a crib. she packed up all of his infant toys and decided to donate them to his day care center. included in the box was a rattle that he had been quite attached to. he always pulled the small knob off the end of the rattle and josie would frequently reattach it. she thought that the knob was dangerous but nothing bad ever happened. some other kid might like to play with it now. 1. should josie have been concerned about the knob when her son first started removing it? why or why not? (2-3 sentences) 2. if she had reported the knob to the consumer product safety commission, what could the agency have done? (2-3 sentences) 3. if josie gives the box of toys to the day care center, what should the center director do? (2-3 sentences) 4. provide an appropriate substitute toy for her son at the age of infancy to replace the rattle. what does this toy promote for developmental wellbeing? you can include a picture or direct weblink to the toy, but do not forget your answer to the question regarding what does it promote for developmental wellbeing. (4-5 sentences) answer

Bloodborn pathogens are infectious microorganisms carried by what?