Which structure in the fetus enables blood to bypass the lungs and pass directly from the right atrium to the left atrium?
A. Truncus arteriosus
B. Ductus arteriosus
C. Bulbus cordis
D. Sinus venosus
E. Foramen ovale
E. Foramen ovale
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The antibody that becomes bound to mast cells and basophils and causes the cells to release histamine and other chemicals is ________.
Fill in the blank(s) with the appropriate word(s).
Label L represents which of the following structures?
A) renal papilla
B) renal columns
C) renal pyramid
D) major calyx
E) minor calyx
Sophie is working in the lab with a chemical with the formula C12H24O12. With what type of organic molecule does she work? Discuss how you came to your conclusion
What will be an ideal response?
The reticular region of the dermis consists of ________ tissue.
A. dense regular connective B. stratified squamous epithelial C. adipose D. areolar connective E. dense irregular connective