HEL PL ASA Security Dogs are trained to report a targeted smell in three ways:
O Sit to show they have found the odor O Point the location out to the handler W O Bark to confirm they are locked in on the smell
O All of these answers

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

d. groundwater flows through the subsoil and deposits minerals.