Answer:
[tex][/tex] 1. Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The goal of science is to understand the natural world through observation, experimentation, and evidence-based reasoning.
2. The steps of a scientific investigation typically include:
- Formulating a research question
- Conducting background research
- Formulating a hypothesis
- Designing and conducting experiments to test the hypothesis
- Analyzing data and drawing conclusions
- Communicating results
3. A scientific hypothesis is a proposed explanation for a phenomenon that can be tested through experimentation. A useful hypothesis must be testable, falsifiable, specific, and based on existing knowledge.
4. An advantage of collecting evidence in a natural setting rather than in a lab is that it allows researchers to observe organisms or processes in their natural environment, providing more realistic and ecologically valid results.
5. The six characteristics of all living things are:
- Cellular organization
- Reproduction
- Metabolism
- Homeostasis
- Response to stimuli
- Growth and development
6. Four unifying principles of modern biology are:
- Cell theory
- Evolution by natural selection
- Genetics and inheritance
- Homeostasis
7. The levels of organization of a complex, multicellular organism such as a mouse starting with the cell are:
Cell -> Tissue -> Organ -> Organ system -> Organism.
8. Homeostasis is the ability of an organism to maintain internal stability despite external changes. An example is the regulation of body temperature in humans through mechanisms such as sweating or shivering to maintain a constant internal temperature.
