D.
If the vibrations have a low frequency, the sound is heard as a __low-pitched sound_____. If the vibrations have a high frequency, then the sound is heard as a __high-pitched sound_____.
Explanation:
High pitched sound is of higher frequency because they make the air molecules vibrate much faster than low-pitched sound. Due to their high frequency, their wavelength is shorter (Remember wavelength and frequency are inversely proportional). Vice versa is true to the low-pitched sound. They vibrate air molecules slower than high-pitched sound. Their wavelength is longer and frequency smaller.
Learn More:
For mor on pitch of sound check out;
brainly.com/question/61859
brainly.com/question/1509263
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To find the similarities and differences in organisms by using possible chromosome and physical characteristics.
Answer:
The answer is indirect immunofluorescence
Explanation:
Immunofluorescence is a technique used to detect antigens by colors in a scientific setting using antibodies.
The test that can be used to determine pathogens using microscopy and fluorescently tagged antibodies is "indirect immunofluorescence".
This is used to identify diseases that attack the autoimmune system.
I hope this answer helps.
Answer:
False
Explanation:
Water is not a mixture of hydrogen and oxygen but its a compound composed of hydrogen and oxygen atom bound 2:1 ratio. Well the triple distill water is pure and water from your tap, river, sea is not pure in the sense at least your purified tap water will contain sodium, calcium and related ions.
