A zygote is formed from what two gametes?


Ans: sperm and egg

Biology & Microbiology

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All of the following are ways cancer cells avoid growth and invasion restriction imposed by the immune system except

A) they are heterogeneous groups of cells. B) cancer cells often respond to density-dependent growth factors. C) some cancer cells produce leukotoxins. D) some cancers often "hide" in dense supporting tissue. E) some cancers produce low levels of surface antigens.

Biology & Microbiology

Glycolysis

a. occurs in the mitochondria. b. happens to glucose only. c. results in the production of pyruvate. d. occurs in the cytoplasm. e. results in the production of pyruvate and occurs in the cytoplasm.

Biology & Microbiology

Because viruses have limited genetic material, their mutation rates are very low

Indicate whether the statement is true or false

Biology & Microbiology

Karl Popper suggested that scientists use "imaginative preconception," which means that successful scientists

A. do not need to do experiments to test their ideas. B. do not keep records of experiments that fail. C. often predict the outcome of experiments. D. cannot predict the outcome of experiments. E. only perform applied research.

Biology & Microbiology