Inflamed tissue turns red because ________.
Fill in the blank(s) with the appropriate word(s).
Answer: there is an increased blood flow to the injured tissues due to dilation of arterioles in the injured area
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Why does it take 10 times more energy to grow a kilogram of beef than a kilogram of wheat?
A) Only 10% of wheat is digestible by cattle. B) Cattle eat only 10% of their body weight. C) Cattle only integrate 10% of their food into biomass. D) A kilogram of wheat weighs less than a kilogram of beef
Suppose an animal cell was placed in a beaker of solution. The cell immediately began to swell and ultimately burst. Why did this happen?
a. because the cell's cytoplasm was hypotonic to the solution, which was isotonic b. because the cell's cytoplasm was hypertonic to the solution, which was hypotonic c. because the cell's cytoplasm was hypertonic to the solution, which was isotonic d. because the cell's cytoplasm was hypotonic to the solution, which was hypertonic
The ________ is the organ that delivers oxygen and nutrients and removes carbon dioxide and wastes for the embryo and later fetus
Fill in the blank(s) with correct word
Which of the following statements about organellar movement in the cell is false?
(a) Organelles undergo saltatory movement in the cell. (b) Only the microtubule cytoskeleton is involved in organellar movement. (c) Motor proteins involved in organellar movement use ATP hydrolysis for energy. (d) Organelles are attached to the tail domain of motor proteins.