Uranium 235 has a half life of 700 million years . how long does it take a 100 gram sample of uranium 235 to decay a mass of 50 grams

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b. through genes c. through seasonal cycles d. through hibernation

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.