Serous fluid secreted by both the parietal and visceral layers of the pericardium, and released into the pericardial cavity, lubricates the membranes and facilitates the almost frictionless movement of the heart when it beats.
a. true
b. false
a. true
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If you were to sequence the genome of two individuals and found that their DNA is 99.9% similar, what inference could you make?
A. These individuals are likely identical twins. B. No inferences could be made because 99.9% of DNA is shared between all humans. C. These individuals must be from different species. D. These two individuals must be siblings.
The relationship between the knee and the ankle can be described as:
a. the knee is inferior to the ankle b. the knee is distal to the ankle c. the knee is proximal to the ankle d. both A and B above
Incomplete fatty acid oxidation produces ________, which might lead to ________.
A. ketone bodies; acidosis B. pyruvate; acidosis C. triglycerides; new triglycerides D. glycerol; alkalosis E. acetyl-CoA; acidosis
The mammillary bodies
A. influence breast milk production. B. produce reproductive hormones. C. are involved in emotional responses to odors. D. are found in the thalamus. E. influence the onset of puberty.