What would you find in the heart of most reptiles?
A. two atria and two ventricles
B. two atria and a partially divided ventricle
C. one atrium and two ventricles
D. two atria and one ventricle
E. one atrium and one ventricle
Answer: B
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"DNA footprinting" is a technique that can be used to identify:
A. a region of DNA that has been damaged by mutation. B. the position of a particular gene of a chromosome. C. the position of internally double-stranded regions in a single-stranded DNA molecule. D. the specific binding site of a repressor, polymerase, or other protein on the DNA. E. All of the choices given can be identified by this technique.
Dolphins use echolocation to maneuver around objects quickly and precisely to capture prey. Thus, you would expect them to have a larger-than-normal
A) limbic system. B) cerebrum. C) hypothalamus. D) cerebellum. E) amygdala.
What is the term for the single cotyledon within the kernels of cereal grains?
A. Amyloplast B. Hypocotyl C. Dicot D. Aleurone E. Scutellum
Which of the following is a function of the blood?
a) transport of nutrients and wastes b) transport of body heat c) transport of gases d) defense against toxins and pathogens e) all of the above