A. What makes up the sides of the DNA molecule? B. What makes up the "rungs" of the DNA molecule?

4. Fill. in: Write the name of the nitrogenous base that joins to each of the bases below:

Adenine (A) joins to
Thymine (T) joins to
Cytosine (C) joins to
Guanine (G) joins to

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

carbon atoms, hydrogen, oxygen, and nitrogen.

answer; both surfaces of the membrane are nonpermeable

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.