Match the cell membrane structure to its description: Desmosomes.
A)Adjacent cells held together by connexon proteins that form cylinders allowing ion flow between the cells' cytoplasm
B)Adjacent cells joined by a line of membrane proteins that form an impermeable junction
C)Buttonlike junctions that use linker proteins to hold adjacent cells together.
D)Mechanical couplings scattered like rivets along the sides of adjacent cells to prevent their separation
D)Mechanical couplings scattered like rivets along the sides of adjacent cells to prevent their separation
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What makes vegetable oils with trans fats similar in structure to saturated animal fats? Which type of fat is harmful, and in what way?
What will be an ideal response?
Regulatory-protein transcription factors bind to ________ and activate ________, which tells the RNA polymerase ________.
Fill in the blank(s) with the appropriate word(s).
Bone tissue is also called ________ tissue.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements concerning the vertebral column is true?
A. Scoliosis is the term applied to normal curvature of the spine. B. The adult vertebral column has three curvatures. C. The cervical curve develops before birth. D. An exaggerated thoracic curvature of the vertebral column is called kyphosis. E. Lordosis is an exaggeration of the cervical curvature.