Which of the following correctly matches a cell or group of cells with its ability to differentiate into different specialized cells? (Select all correct choices.)
A. fertilized egg: pluripotent
B. mesoderm: pluripotent
C. endoderm: multipotent
D. fertilized egg: multipotent
E. ectoderm: totipotent
C
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Which of the following best describes processes that take place during cell communication to produce a cellular response?
A) A series of changes takes place in relay molecules through a signal transduction pathway.
B) Local regulators convert electrical signals to chemical signals to cause movement in a cell.
C) Signaling molecules detect changes in a cell's environment and trigger hormone release.
D) Transduction causes signaling molecules to bind to receptors on the surface of a cell.
Which statement concerning production of bryophyte reproductive cells is true?
a. Spores and gametes are produced by meiosis. b. Spores and gametes are produced by mitosis. c. Spores are produced by meiosis, whereas gametes are produced by mitosis. d. Spores are produced by mitosis, whereas gametes are produced by meiosis. e. Spores and gametes are both used for sexual reproduction.
what is the mode of action for quinolones and metronidazol?
What will be an ideal response?
This is a mating pair of parrots. You would expect them to be:
a) monogamous and sexually dimorphic. b) monogamous and sexually monomorphic. c) polygamous and sexually monomorphic. d) polygamous and sexually dimorphic. e) monogamous and the female making the nest and caring for the young.