12.Lignified vascular tissues allows vascular tissues to grow very tall. How does this give vascular plants a competitive edge?​

individual oxygen atoms are formed during photosynthesis.-c.

why do you want to cheat? i dont take it, so i dont know.

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blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.