If you are talking about asexual reproduction, then the chances of getting an A gamete is 100% since the parent has AA, so there is no other possibility
An open system is a system that has external interactions.
a closed system is a physical system that does not allow certain types of transfers in our out of the system.
an isolated system obeys the conservation law that its total energy- mass stays constant.
Answer:
Sound waves can reflect off surfaces. We hear sound reflections as echoes. Hard, smooth surfaces are particularly good at reflecting sound. This is why empty rooms produce lots of echoes.
Soft, rough surfaces are good at absorbing sound. This is why rooms with carpets and curtains do not usually produce lots of echoes.
Explanation:
With this information, you'd be able to come up with your answer,
Hope this helps!
Sound from vibrating body produces longitudinal wave in air
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