What day is considered to be the first day of a female’s reproductive cycle? When hormone levels are low and the uterus lining is shed. When hormone levels are high and the uterus lining is shed. When hormone levels are low and the ovary releases an egg. When hormone levels are high and the ovary releases an egg.

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

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According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?