PLEASE HELP RIGHT AWAY 8 A DNA molecule is made up of long chains of nucleotides. A DNA nucleotide consists of a , a , and a nitrogenous base.

9 In DNA, the four bases are , , , and . These bases are called complementary bases as Adenine (A) bonds only with ( ) and Guanine (G) bonds only with ( ).

Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts

Ineed a chemical reaction takes place in which erlergy is released. arrange the reaction's characteristics in order from start to finis lower energy of reactants higher energy of products higher energy of reactants transition state sd lower energy of products

What was the land like over 500 million years ago? what was under the sea?