Cocci which divide in the same plane and remain attached are streptococci.
Answer the following statement true (T) or false (F)
True
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________ is a chemical message sent by another individual.
a. Pheromone
b. Proprioception
c. Thermoception
d. Phenome
What is the function of gap junctions in cells?
a. Anchor the cells to basal lamina. b. Hold the cell wall close to the plasma membrane. c. Allow ions and small molecules to flow freely between cells of a given tissue type. d. Serve as a scaffold for active transport proteins to cluster together. e. Anchor the cells to neighboring cells.
Which of the stages or structures in Figure 51-1 was formed by the process of gastrulation?
a. 1 b. f c. g d. 3 e. 5
Which of the following membrane activities requires energy from ATP?
A) facilitated diffusion of chloride ions across the membrane through a chloride channel B) movement of Na+ ions from a lower concentration in a mammalian cell to a higher concentration in the extracellular fluid C) movement of glucose molecules into a bacterial cell from a medium containing a higher concentration of glucose than inside the cell D) movement of carbon dioxide out of a paramecium