Which of the following BEST describes the essential difference between plant and animal nutrition?
A) Plants use inorganic substances and energy from the sun to produce their own food.
B) Plants use organic substances to produce their own food.
C) Plants absorb food through their roots.
D) Plant and animal nutrition are essentially the same.
A
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PKU can be detected by
a. prenatal karyotyping. b. urine analysis at birth. c. blood tests at birth. d. saliva tests. e. both urine analysis and blood tests at birth.
In horses, there are four alleles at the A locus. Arranged in dominance sequence they are:A
(wild), ab (bay), ac (brown), ad (black) If you bred several bay mares whose sires were brown to a brown stallion whose sire was black, what are the genotypes of the parents; what type of offspring would be produced; and in what proportion? What will be an ideal response?
Which blood vessel has the highest concentration of carbon dioxide?
Select one: a. pulmonary artery b. pulmonary vein c. aorta d. renal vein e. hepatic portal vein
The portion of the eye where photoreceptors are located is the ____
a. lens b. cornea c. pupil d. fovea e. retina