How many factors should a well-designed experiment test at one time? a. 1 b. 2 c. 3 d. depends on the number of experiment variables

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

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?

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass