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CH 1 Biology Test
Review Guide
Question | Answer |
---|---|
Describe a beaker, what is it's function? | A beaker stores liquids and estimates volume. |
Describe an Erlenmeyer flask, what is it's function? | An Erlenmeyer flask stores liquids, estimates volume and contains reactions. |
Describe a graduated cylinder, what is its function? | A graduated cylinder measures volume. |
Describe a pipette, what is its function? | A pipette transfers small amounts of liquid. |
What is a meniscus when measuring fluids? | A meniscus is the curve of the fluid in a graduate cylinder. |
What is a petri dish used for? | Growing microorganisms. |
What are the 6 steps of the scientific method? Describe each step. | 1. Observation/ Question 2. Form a hypothesis 3. Design and Experiment 4. Collect Data 5. Draw a conclusion 6. Publish |
What is a hypothesis? | An educated guess about your question based on your observation. |
What is a control? | Something that stays the same or is very close to a normal environment. |
What is an experimental variable? | The one variable that you change during an experiment. |
What is a responding variable? | The variable that you think will change based on experimental variable. |
Which variable goes on which axis? | The experimental variable goes on the x axis, the responding variable goes on the y axis. |
Define Manipulated variable. | The manipulated variable is the same as the experimental variable, the one you can change. |
What are the eight characteristics of living things? | 1. Maintain and use energy 2. Grow and develop 3. Made of cells 4. Reproduce 5. Universal genetic code DNA/RNA 6. Respond to environment 7. Maintain an internal balance. 8. Evolve |
Define Ethics. | Ethics are the moral basis of human behavior. |
Define Bioethics. | Bioethics are ethics applied to the life sciences. |
What are the three principles of bioethics? | 1. Respect for persons. 2. Maximizing benefits, minimizing harm. 3. Justice, fairness. |
What is an inference? | An inference is a particular interpretation of a set of facts. |
What is an observation? | An observation is a cold, hard, undeniable fact. |
What is a law? | A law is a concise, specific description of something in the natural world. |
What is a theory? | A theory is a well tested explanation that unifies a broad range of observations and laws. |
How do laws, theories and hypothesis relate to each other? | A theory is our best idea of how the world works, hypothesis and laws can be a part of a theory, but there is nothing that trumps theory. |