One should expect to find cilia associated with the feeding apparatus of _____
A) annelids
B) coral animals
C) tapeworms
D) sponges
D
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Which of the following characteristics are shared by all worm phyla?
A. Displaying bilateral symmetry B. Being heterotroph C. Having tissues D. All of the above are characteristics shared by all worm phyla
It took more than 100,000 years for the human
population to grow to one billion individuals and took about __________ years to add five billion more. a. 200 b. 20,000 c. 100,000 d. 200,000 e. 500,000
After infection occurs, the first line of defense for a host against a parasite is the ________ response
Fill in the blank(s) with correct word
In an experiment to track the movement of growth factor molecules from secretion to the point of receptor binding in a particular species of mammal, a student found a 20-fold reduction in mm traveled when in the presence of an adrenal hormone. This is in part attributable to which of the following?
A) The growth factor is a paracrine signal. B) The growth factor depends on osmosis. C) The mammal only carries growth factor through the lymph. D) The growth factor is an exocrine signal. E) The growth factor is an endocrine signal.