The spread of cancer cells from their site of origin to sites distant in the body is called ________.
A. mitosis
B. tumor
C. metastasis
D. growth
Answer: C
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Are oogonia present in adult women? (yes or no) Explain your answer.
What will be an ideal response?
Atoms that gain electrons are now
A. positively charged. B. negatively charged. C. neutral. D. lighter.
Which of the following is a stop codon of translation?
a. UCA b. UUG c. UGA d. UAC
Chimpanzees and gorillas share the trait of knuckle-walking, which humans do not generally have. Why do most scientists NOT classify chimpanzees and gorillas as each other's closest relatives?
A) The majority of genetic evidence places chimpanzees closest to humans, not to gorillas. B) Fossil evidence suggests that knuckle-walking was present in ape ancestors and is not a uniquely derived trait for chimpanzees and gorillas. C) Chimpanzees and humans share more unique features in common than either share with gorillas. D) Fossil apes that are thought to be closest to humans show adaptations for knuckle-walking, implying that humans have secondarily lost the trait. E) All of the above.