Where did most of the matter that makes up the wood and leaves of sequoia tree originally come from?

Using the periodic table, determine which material is most likely a good conductor

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.