5 Written questions
5 Matching questions
- a Cells communicate with each other through direct contact with other cells or from a distance via chemical signaling.
- b All living systems require constant input of energy.
- c Organisms capture, use, and store energy in biological processes such as growth, reproduction and maintaining homeostatic processes.
- d Organisms constantly respond to changes in their external environments.
- e Biological systems possess multiple mechanisms that increase genetic variation.
5 Multiple choice questions
- Organisms use negative feedback mechanisms to maintain their internal environments and respond to external environmental changes.
- Biological systems are affected by disruptions to their homeostasis.
- Interactions between molecules affect their structure and function.
- Viruses reproduce and can introduce genetic variation into their hosts.
- Organisms exhibit complex properties due to interactions between their constituent parts.
5 True/False questions
2.B.2. → Growth and dynamic homeostasis is maintained by the constant movement of molecules across membranes.
3.A.4 → DNA, and in some cases RNA, is the primary source of heritable information.
4.C.1. → Positive feedback mechanisms amplify responses and processes in biological organisms.
4.C.2. → Interactions of subcellular structures, including a repertory of eukaryotic organelles possessing specialized functions, provide essential cellular functions and activities.
3.E.1. → Organisms exchange information with each other in response to internal changes and external cues, which may change behavior.