Answer:
B
Explanation:
because they are moving at the same direction
Sound waves are both compressional and longitudinal, (although we frequently draw them as transverse waves).
Longitudinal waves are where the particles of matter collide into one another, pushing them into the next and then oscillating back. This is how sound travels. This is also why sound can only travel through a medium, it cannot travel through a vacuum, as is shown here:
Answer:
B
Explanation:
The Italian musical command decrescendo (abbreviated decresc.) is an indication to gradually decrease the volume of the music. The musical symbol for decrescendo is a narrowing angle, often followed by another dynamics command (see image). Opposite of crescendo
Answer:
"The central dogma of molecular biology explains the flow of genetic information, from DNA to RNA, to make a functional product, a protein. The central dogma suggests that DNA contains the information needed to make all of our proteins, and that RNA is a messenger that carries this information to the ribosomes."
Explanation:
Cnidarians are characterized by stinging cells used for defense and for capturing prey.
Answer: B. Cnidarians
Cnidarians are animals which have specials cells known called 'cnidocytes', these are stinging cells. Cnidarians also have organelles called 'nematocysts'. Nematocysts are stringers that are primarily used to capture prey and for defense.
I hope this helps!
