Nitrogen, carbon, and oxygen are essential to life. both nitrogen and carbon are building blocks for life because they
are needed in

answer: in other words, carbon atoms are the perfect building blocks for large life? "one thing that makes nitrogen, hydrogen and oxygen good is that they're abundant," pasek said. found in the molecule phosphate, is vital to metabolism, because in summary, "with a few exceptions, what you need for life is

explanation:

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called