Answer:
They have homologous structures because they have a common ancestor.
Explanation:
We have that the time in seconds, minutes, and hours is
From the Question we are told that
Velocity 
Distance 
Generally the equation for the Time is mathematically given as
Therefore
And
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Answer:
The answer is A
Explanation:
Density basically shows the amount of mass per volume of something. You can easily find Density with the equation D=m/v
D= Density
m= mass
v= volume
-- Light travels straight, not around in a circle. But if it did, it would cover
a distance equal to the length of the equator in about <em>0.13 second</em>.
-- At the speed of sound (in air at standard temperature and pressure),
it would take about <em>32.6 hours </em>to cover the same distance.
