Which of the following statements is true?
electrons have a negative charge.
the n=1 sh...
Biology, 04.12.2019 01:31 ondreabyes225pcr83r
Which of the following statements is true?
electrons have a negative charge.
the n=1 shell can hold eight electrons.
the number of electrons in an atom is equal to the number of neutrons.
the second electron shell can hold 16 electrons.
Answers: 3
Biology, 21.06.2019 16:00
Arational expression has been simplified below. (x-5) (x+1)/3(x+1) = x-5/3 for what values of x are the two expressions equal
Answers: 1
Biology, 22.06.2019 10:30
Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
Answers: 1
Biology, 22.06.2019 11:30
Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.
Answers: 1
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