All are true of Striated muscle tissue except ____?
a. Protein fibers appear as "little black lines" (striations) through tissue
b. voluntary muscle
c. multi-nucleated cells
d. found in biceps and triceps muscles of human arm
e. all are correct
Answer: e. all are correct
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A condition characterized by facial and deformities, genital anomalies, and cognitive impairments, is called ________ syndrome.
Fill in the blank(s) with the appropriate word(s).
The CRP-cAMP complex binds the lactose operon when:
A. glucose levels and cAMP levels are high. B. glucose levels are high and cAMP levels are low. C. glucose levels are low and cAMP levels are high. D. glucose levels and cAMP levels are low. E. None of these choices are correct.
Once a pollen tube lands on a compatible stigma ____
a. chemical cues guide the pollen tube from the stigma to the embryo sac of an ovule b. that pollen tube continues on to another ovule c. other pollen tubes are attracted to that ovule d. other pollen tubes can penetrate that ovule more easily
e. the flower dies to prevent further pollinationLuteinizing hormone (LH) triggers ovulation in females. What is its role in males?
A. It exists in rudimentary levels since LH is made by the anterior pituitary. B. It controls production of testosterone. C. It does not exist since males lack ovaries. D. It is exactly the opposite chemical from male hormones, in an antibody-antigen fashion.