Comparing the body structures of organisms to find evidence of a shared evolutionary history is called ________.
A. analogous reconstruction
B. comparative anatomy
C. physiology
D. outgrouping
Answer: B
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When does an atom becomes a cation?
a. It emits radiation. b. It shares electrons. c. It loses one or more electron. d. It gains one or more electron. e. One or more of its electrons changes energy levels.
What is the role of primers in the PCR techniques?
A) To separate strands of double-stranded DNA B) To add free nucleotides to the newly formed DNA molecule C) To allow single strands of DNA to bind together D) To target specific areas of DNA
Water molecules are attracted to each other due to the opposite charges created by partial charge separations within the molecules. These attractions are called:
A. double bonds. B. ionic bonds. C. hydrogen bonds. D. peptide bonds. E. covalent bonds.
When cells are not responding to normal controls over growth and division, they form a tissue mass known as a _____________.
A. metastasis B. malignancy C. tumor D. carcinogen E. nucleosome