Answer:
This might be because since they reproduce without mating, the genes of their offspring have are not mixed with anyone elses, making them have very little variation in contrast with those that reproduce our way.
Answer:
Explanation: light waves against itself, which leads to internal interference of different wave component Which is also referred to as diffraction.
Diffraction causes beam of light to slowly spread out as it travels, so that some of the light will bend away from a straight line motion of the main part of the wave
Answer:
Work done, W = 141174 Joules
Explanation:
It is given that,
Constant tension acting on the boat, T = F = 465 N
Speed of the boat, v = 4.6 m/s
Time, t = 1.1 min = 66 seconds
Let W is the work done by the tension. It is equal to the product of force and displacement. It is given by :
Since, 
W = 141174 Joules
So, the work is done by the tension is 141174 Joules. Hence, this is the required solution.
Gradpoint? The answer is B
consider the west direction as positive direction of motion
V' = velocity of airplane relative to observer on ground = 580 mph
v = velocity of wind relative to observer on ground
V = average speed of airplane with no wind = 600 mph
relative velocity is given as
V' = V + v
inserting the values
580 = 600 + v
v = 580 - 600
v = - 20 mph
the negative sign indicates the direction of wind is opposite to direction of airplane , east
hence speed of wind is 20 mph in east direction.
