1. Prolactin stimulates milk production because after the placenta is delivered the absence of progesterone and high levels of prolactin cause milk production. 5. Dextromethorphan is used to treat common colds and contains anti-histamines, pain relievers and decongestants. 13. Receiving oxygen is the main goal of the respiratory system by acting as a vacuum to suck in air and release carbon dioxide. 19.Cardiopulmonary rescucitation is used to get blood flowing and the lungs working by using chest compressions and artificial air flow. The chest compression at like jump start to get the heart pumping and lungs inflating. 20. Norepinephrine works with the sympathetic nervous system to activate the fight or flight response and release adrenaline to either fight or run. I tried to answer all of these questions but I don't think I can answer all twenty all at once
Many have heard it, but nobody has ever seen it. It will not speak back until spoken to. What is it? The answer to the riddle is an echo. Echo is the reflection of the sound that when it is released by the speaker, it arrives back to the speaker (now listener) but is delayed.
The dominant allele will be the characteristic of the organism that we can see. The recessive (genotype) can only be dominant in the second generation, upon fertilization with a similar organism of similar genotype.
