This layer of filtration membrane is composed of collagen fibers and proteoglycans in a glycoprotein matrix
a) glomerular endothelial cells
b) basal lamina
c) pedicels
d) filtration slits
e) slit membrane
b
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Chemical digestion in the small intestine involves ________.
A) a significant amount of enzyme secretion by the intestinal mucosa B) cholecystokinin (CCK), an intestinal hormone responsible for gallbladder contraction C) secretions from the spleen that contain all enzymes necessary for complete digestion D) bile salts that help emulsify carbohydrates so that they can be easily digested by enzymatic action
The general effect of the parathyroid hormone is to increase the blood level of ________________________________________
Fill in the blank(s) with correct word
How is the body-fluid composition of hagfishes different from that of other vertebrates? How does this difference figure in the debate about whether vertebrates arose in fresh or salt water?
What will be an ideal response?
The irregular ridges and folds of the ventricles are called the ____
a. trabeculae carneae b. auricles c. sulci d. gyri