Select the correct answer.

What is the first sign of dehydration?

A.

Increased thirst

B.

Increased dizziness

C. decreased urine

D. decreased endurance

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Which measurement is a good indicator of physiological age

What is the mass of an object that weighs 720 N on the surface of the earth?

Certain cell types normally have several nuclei per cell. How could such multinucleated cells be explained?

An object moving to the right at makes an elastic head-on collision with a object moving in the opposite direction at. what is the velocity of the object after the collision

Which of the following reactions release more energy? nuclear chain reactions fusion reactions fission reactions chemical reactions

Gerry is looking at salt under a powerful microscope and notice a crystalline structure. what can be known about the salt sample that Gerry is looking at

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

Imagine standing on a bathroom scale and reading your weight. now lift one foot and read your weight again. does the scale read more, less or the same weight when you are standing on one foot?

The period T of a simple pendulum depends on the length L of the pendulum and the acceleration of gravity g (dimensions L/T^2). (a) Find a simple combination of L and g that has the dimensions of time.

What is an example of the theory that the best adapted organisms for an environment are the ones most likely to survive