The measure distance from a ship to the sea floor is 648 meters. How long did it take for the sound to travel from the ship to the sea floor?

The measure distance from a ship to the sea floor is 234 meters. How long did it take for the sound to travel from the ship to the sea floor?

The measure distance from a ship to the sea floor is 5280 meters. How long did it take for the sound to travel from the ship to the sea floor?

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.