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Q27: Which of the following is directly responsible
Q30: One part of Darwin's theory is that
Q31: Each round of reactions in PCR _
Q49: The lack of rust in the oldest
Q60: PCR uses a special DNA polymerase that
Q66: How many types of differentiated cells are
Q67: To make a clone of an adult
Q69: Which structures are paired blocks of mesoderm
Q71: Which gland produces both aldosterone and cortisol?<br>A)hypothalamus<br>B)adrenal
Q85: The place where a species normally lives