5 Written questions
5 Matching questions
- a Cell communication involves processes resulting from evolution that are shared common features.
- b Organisms use negative feedback mechanisms to maintain their internal environments and respond to external environmental changes.
- c Timing and coordination of several events are necessary for the normal development of an organism, and these events require regulation by multiple mechanisms.
- d Variation in molecular units provides cells with a wider range of functions.
- e DNA, and in some cases RNA, is the primary source of heritable information.
5 Multiple choice questions
- Organisms exchange information with each other in response to internal changes and external cues, which may change behavior.
- Errors in normal signal transduction may alter cellular response.
- Eukaryotic cells maintain internal membranes that partition the cell into specialized regions.
- Changes in genotype can result in changes in phenotype.
- Positive feedback mechanisms amplify responses and processes in biological organisms.
5 True/False questions
4.A.4. → Organisms exhibit complex properties due to interactions between their constituent parts.
4.C.2. → Environmental factors influence the expression of the genotype in an organism.
4.A.2. → Interactions of subcellular structures, including a repertory of eukaryotic organelles possessing specialized functions, provide essential cellular functions and activities.
3.B.1 → DNA, and in some cases RNA, is the primary source of heritable information.
2.B.1. → Timing and coordination of several events are necessary for the normal development of an organism, and these events require regulation by multiple mechanisms.