Oncogenes and tumor-suppressor genes have similar effects on cell division.
Answer the following statement true (T) or false (F)
False
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A nursing infant develops a powerful sucking muscle that adults also use for whistling. What is this muscle called?
A) platysma B) masseter C) zygomaticus D) buccinator
Which of the following statements is true?
A) Skeletal muscle cells are long and cylindrical with many nuclei. B) Cardiac muscle cells have many nuclei. C) Smooth muscle cells have many nuclei. D) Cardiac muscle is found in the heart and large blood vessels.
When first focusing a microscope on a specimen, which objective lens should always be used first?
A. It does not matter; any objective lens can be used first. B. Scanning C. Low-power D. Oil immersion E. High-power
To which vessels does blood flow immediately after it passes through the arcuate arteries?
segmental arteries cortical radiate arteries afferent arterioles glomerulus