Leisha thought of three ways she could change her investigation: 1. Observe the direction the bar magnet moves when she brings it near the end of the nail.
2. Observe how many paper clips she can attract to the end of the nail.
3. Connect each wire to the opposite end of the battery as before.

She wants to know how changing the direction of electric current in an electromagnet affects the magnetic
force.

Part A: Identify which of these modifications Leisha should use in her new investigation.
Part B: Explain how each modification you selected will help her meet the goals of her investigation.

Microtubular fibers that assist in the movement of chromosomes during nuclear division in conjunction with proteins, makes up the small and large organelle pieces that assemble prior to translation three-base nucleotide sequence that can complementarily pair with the functional transcript, allowing a particular material to be brought to a ribosome particular time in the cell cycle when the cell’s systems determine if the cellular conditions are appropriate to continue through the cycle time in the cell’s cycle when proteins are made and organelles are duplicated enzyme that allows proper nucleotide bonding during transcription specific dna sequence which will initiate gene transcription division of the cell’s cytoplasm specific bond that forms between two amino acids when a carboxyl group binds to a amino group three-base sequence that does not code for a particular amino acid a paired organelle which facilitates the formation of movement microtubules time in the cell’s cycle when the microtubular structures exert an equal pressure on the cell’s genetic material

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

8. what happens to matter during a chemical reaction