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Describe two types of radioactive decay that are relevant to dating earth materials?
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Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.
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How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex
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Based on their relative positions in the periodic table, which two elements would have the same number of valence electrons?
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Describe two types of radioactive decay that are relevant to dating earth materials?...
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