In labyrinthulids, the nonflagellated stage of the life cycle features spindle-shaped cells that form complex colonies that glide rapidly along an ________ net made by the organism.
A. protoplasmic
B. endoplasmic
C. pellicular
D. ectoplasmic
Answer: D
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Tibetan people have ____ in their blood despite living at high altitude
a. less oxygen b. more erythropoietin c. less erythropoietin d. more hemoglobin e. less hemoglobin
____ are cells that move through the sponge's body
a. Collar cells b. Pinococytes c. Archaeocytes d. Spongin e. Spicules
The function of erythropoietin is
a) reabsorption of sodium ions b) excretion of potassium ions c) reabsorption of water d) to stimulate red blood cell production e) to increase blood pressure
Which of the following is a decrease in blood supply to the tissue such that it does not meet the metabolic demands of the tissue?
A) hypoxia B) active hyperemia C) myogenic response D) ischemia E) reactive hyperemia