What is the seed and soil theory?
a. Cancer spreading is determined by the pattern of blood flow
b. Fertile environment in which compatible tumor cells could grow
c. Age and gender
Ans: b. Fertile environment in which compatible tumor cells could grow
Biology & Microbiology
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Why do scientists use model organisms?
What will be an ideal response?
Biology & Microbiology
Ribosomes ________.
A. translate mRNA into proteins B. are involved in making ATP for eukaryotic cells C. transcribe DNA into mRNA D. are located inside the nucleus in eukaryotic cells
Biology & Microbiology
Which region of the brain helps regulate body temperature, endocrine activity, and water balance?
A) Medulla B) Thalamus C) Cerebrum D) Hypothalamus E) Cerebellum
Biology & Microbiology
A prion is a(n)
a) abnormally folded protein. b) protein subunit. c) form of a bacterium. d) viral particle.
Biology & Microbiology