Which of the following statements is true?
A. Integrins and cadherins facilitate cell
adhesion to extracellular substrates.
B. Cadherins on the surface of animal cells
permit the adhesion of cells to other cells.
C. Cadherins are used by plant cells to attach
the plasma membrane to the cell wall.
D. Integrins on one cell attach to cadherins
on another cell to promote cell adhesion.
B
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How are the Ca cycle and the C cycle linked in marine environments? How will increased carbon dioxide from anthropogenic activity affect the Ca and C cycling in marine environments?
What will be an ideal response?
What hormone is responsible for milk production and secretion during and after pregnancy?
A) prolactin B) estrogen C) progesterone D) human chorionic gonadotropin
Which of the following structures is a stem adaptation instead of a root adaptation?
A. tubers B. corms C. stolons D. rhizomes E. These are all are stem adaptations.
Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides
Indicate whether the statement is true or false