What term is used to indicate the ability of a cancer to invade other parts of the body and to produce secondary tumors?
a. Angiogenesis
b. Metastasis
c. Carcinogenesis
d. all of the above
Answer: b. Metastasis
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Which of the following happens during prophase I of meiosis?
A. recombination between non-sister chromatids of homologous chromosomes B. recombination between sister chromatids of homologous chromosomes C. recombination between non-sister chromatids of non-homologous chromosomes D. recombination between sister chromatids of non-homologous chromosomes
The system of fungal filaments that penetrates and grows through the substrate is called a(n)
A. mushroom. B. hyphal compartment. C. mycelium. D. sporangium. E. exoskeleton.
What is an important benefit of using condoms?
A. They help protect against STDs. B. They can help prevent osteoporosis. C. They have a failure rate of only 1%. D. They prevent prostate cancer.
An axenic environment is one
A) in which microorganisms remain with the person throughout life. B) that is free of microbes. C) that is a source of contamination. D) in which microorganisms remain present only for a short time. E) contaminated by microbial toxins.