What do the traits of tongue roller, freckles, and dimples have in common?
A. They are all recessive traits.
B. They are all dominant traits.
C. They are all inherited by codominance.
D. They all have multiple alleles.
E. They are all inherited by incomplete dominance.
Answer: B
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An element that is a component of hemoglobin, myoglobin, and cytochromes is
A) calcium. B) magnesium. C) iron. D) zinc. E) cobalt.
The pericardium lies within the ________, a portion of the thoracic cavity that lies between the left and right pleural cavities.
Fill in the blank(s) with the appropriate word(s).
In response to the arrival of acidic chyme in the duodenum, the blood levels of
A) gastrin rise. B) enterocrinin fall. C) cholecystokinin fall. D) secretin rise. E) All of these answers are correct.
The spinal cord controls some ANS responses, particularly visceral reflexes.
Answer the following statement true (T) or false (F)