The wall of the bladder is able to expand because it contains three layers of smooth ______.

Fill in the blank(s) with the appropriate word(s).


Answer: muscle

Biology & Microbiology

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Development of an animal is connected to the genes that are expressed during development. Researchers propose that ...

A. increases in the number of Hox genes have been instrumental in the evolution of many animal species. B. the greater the number of Hox genes the more complex the body plan of the animal. C. both BMP4 and Hox are associated only with digit development in animals. D. increases in the number of Hox genes have been instrumental in the evolution of many animal species and the greater the number of Hox genes the more complex the body plan of the animal are both correct. E. increases in the number of Hox genes have been instrumental in the evolution of many animal species, the greater the number of Hox genes the more complex the body plan of the animal, and both BMP4 and Hox are associated only with digit development in animals are all correct.

Biology & Microbiology

Consider the Hershey-Chase experiment. Is their choice of a bacteriophage unusual? What will be an ideal response?

Biology & Microbiology

__________ stop fluid from leaking across an

epithelium. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Fill in the blanks to complete the following statements. ? When a substance or organism is structurally altered it has been ____________, which usually results in its death

Fill in the blank(s) with correct word

Biology & Microbiology