Type the correct answer in the box. Spell all words correctly.
Which fingerprint pattern does Sam have?
Sam's thumb print shows a flow of ridges that enters from one side and exits from the other side, with a gradual rise in the center.
Sam's fingerprint has the pattern.

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

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.