When (blank) is released from a (blank) neuron and binds with receptors on the motor endplate, the muscle begins to (blank)
so i’m supposed to fill in the blanks with this one, and i not sure what the blanks are?
a second question i’m stuck on is a multiple choice one,
calcium ions move by which mechanism into the cell and bind with tropomyosin and troponin?
osmosis
active transport
telepathy
diffusion

Explanation:

I think it is: acetylcholine (neurotransmitter) - motor neuron - contract

second question: diffusion because of opening of ca2+ channels

b

is correct hope this   also i learnd this in middle school

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.