Aradioactive tracer has a half life of 2 hours. how much of a 2500 g sample will be available after 24 hours? a) 2.44 g b) 1.22 g c) 0.610 g d) 0.31 g

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

What percentage of light hits earth's surface directly?

The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales