PLEASE HELP PLS I WILL FOREVER BE THANKFUL. Put the steps of replication in the correct order:

a) Helicase enzyme opens up the double helix
b) The double helix opens up some more
c) DNA polymerase begins to build new strands onto the original strands
d) The two new helices start to coil up into two new DNA molecules
e) New strands of DNA are started as enzymes connect the pieces of the growing strands together

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).