Superficial blood vessels in the dermis dilate and sweat glands become active in
the body's effort to ____________ body temperature.
Fill in the blank(s) with correct word
decrease, lower
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A molecule of sucrose has a molecular weight of 342 daltons. How many grams of sucrose would be required to make one liter of a 2.5 Molar solution of sucrose?
What will be an ideal response?
The trophic hormones reach the pituitary through the ________.
Fill in the blank(s) with the appropriate word(s).
Correctly match the term and definition: Flagella.
A)Tiny fingerlike projections of the plasma membrane; increase surface area for absorption B)Long, cellular projections that are tail-like and aid in propulsion C)Small, barrel-shaped structures oriented at right angles to each other; form the bases of cilia D)Motile cellular extensions found in large numbers in some epithelial cells
The relatively long half-life of lipid soluble hormones (steroid hormones) compared to water soluble hormones is due in part to the way that these hormones are passed into the filtrate from the glomerular capillaries
From the list below select the best explanation for why lipid soluble (steroid) hormones have a relatively long half-life. A) The large size of the steroid hormones prevents them from passing through the filtration membrane. B) Steroid hormones are absorbed by target cells before they can reach the kidneys. C) The relatively small size of steroid hormones allows them to easily pass back into the peritubular capillaries if released into the filtrate. D) Steroid hormones travel in the plasma on large transport proteins that cannon pass through the filtration membrane.