The correct answer is the urinary tract which is also know as the collecting duct.
Hope this helps!
The control group is the group that does not receive the experimental treatment. Experimenters use the control group to compare it to the experimental group in order to determine if the treatment had an effect. So, if there is the same result in both groups (decrease in the grass blades) it means that the given treatment had no effect on the experimental group and that the decrease is due to some other conditions.
Answer:
The smaller object will move at 30 m/s
Explanation:
From the principle of conservation of linear momentum,
Momentum of objects before collision = momentum of objects after collision.
where 
are the masses and velocities of the objects 1 and 2 respectively before collision.
Hence, the object will move at 30 m/s
that's all wrong the real answer is b.99.3
The answer is A. Eyeglasses, because eyeglasses are used in modern telescopes, and that's what helps us see the moon
