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Intro to Biology
Unit 1- Mrs. Scialla
| Question | Answer |
|---|---|
| Define Science | a body of knowledge based on the study of nature. |
| topics NOT covered in science | - Moral Judgments - Aesthetic Judgments - Does not tell you how to use scientific knowledge - Does not draw conclusions about supernatural explanations |
| biology | the study of living things in order to gain knowledge. |
| fields within the study of biology | Taxonomy, Anatomy. Cytology, Histology, Paleontology, Embryology, and Genetics. |
| steps of the scientific method | 1. Ask a Question 2. Make Observations 3. Form a Hypothesis 4. Conduct an Experiment 5. Analyze Data 6. Draw a Conclusion |
| What is the difference between a hypothesis and theory? | A ______ is supported or rejected and a _____ is supported by MANY observations and experiments over time |
| independent variable | The variable being changed in a controlled expirement |
| dependent variable? | The variable being measured or tested |
| What is the difference between quantitative and qualitative data? | _____ Data uses numerical values and _____ data uses descriptive terms (not #'s) describing what scientists detect. |
| What metric units are used for quantitative data? | Units are multiples of 10. Metric system Units (SI units) include meter for length. |
| What is the difference between unicellular and multicellular? | ____ have only one cell. _____ have many |
| What are the differences between prokaryotic and eukaryotic cells? | A _____ cell has a nucleus ___-- do not |
| What are similarities between prokaryotic and eukaryotic cells? | All cells have a plasma membrane and genetic material in some form that provides instructions for making substances that the cell needs |
| What is DNA? | a universal genetic code. |
| What is development? What is growth? | _____is maturing; changing over a lifespan. _____ is increasing in size (more cells) |
| What is a stimulus? What is a response? | A ____ is part of an organism's environment & causes a reaction. The ____ is called a response |
| What is reproduction? What is the difference between asexual and sexual reproduction? | _____ is creating offspring. _____ reproduction occurs with ONE parent, _____ reproduction occurs TWO parents. |
| difference between autotrophs (algae) and heterotrophs (humans | Autotrophs make their own food (Algae) and heterotrophs obtain energy from other organisms (humans) |
| homeostasis | Homeostasis keeps an organism's internal condition stable. (shivering/sweating) |
| adaptation | Adaption is changing over a long period of time. |
| levels of organization? | cells ---> tissue ---> organ ---> organ system ---> organisms |
| cell | cells are the smallest/ basic unit of life that exhibit all the charecteristics of life. |
| tissue | a group of cells that function together as a unit. (muscle tissue) |
| organ | a group of tissues that function together as a unit. (heart) |
| organ system | a group of organs that function together as a unit. (circulatory system) |
| levels of organization | Population -> Community -> Ecosystem -> Biome -> Biosphere |
| Organization of living things | organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere |
| characteristics of living things? | made up of units called cells, are based on a universal code (DNA) reproduce, grow and develop, respond to their environment adapt over time ,obtain and use materials and energy, maintain a stable internal environment |
Created by:
Amnah14
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