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CH 1 Biology Test

Review Guide

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.



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