The protein located in muscle cells that delivers oxygen directly to the mitochondria is
A. Hemoglobin
B. Myoglobin
C. Thyroxin
D. Phytic acid
Answer: B. Myoglobin
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What interactions exist between a tick on a dog and the dog?
A) +/+ B) +/o C) +/- D) o/o E) -/-
This polysaccharide is an important ECM component for the exoskeleton of many insects and shellfish.
A. proteoglycan B. glycosaminoglycans C. collagen D. chitin E. laminin
Which metabolic waste product is so toxic it must be converted into other forms before the kidney can excrete it?
a. urea b. carbon dioxide c. ammonia
d. oxygen e. electrolytes
Which of the following is characteristic of ciliates?
A) They use pseudopods as feeding structures. B) They are often multinucleate. C) They can exchange genetic material with other ciliates by the process of mitosis. D) Most live as solitary autotrophs in fresh water.