What is the main function of the skeletal system in relation to the muscular system A. to produce enzymes that help muscles repair themselves
B. to provide attachment points for muscles
C. to produce muscle cells inside the bone marrow
D. to assist muscles in growth and development

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's