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Questions and Answers
Which of the following statements best describes a good hypothesis?
Which of the following statements best describes a good hypothesis?
What is the correct order of the steps in the scientific method?
What is the correct order of the steps in the scientific method?
Which of the following properties is NOT considered a property of life?
Which of the following properties is NOT considered a property of life?
What is the smallest unit of matter?
What is the smallest unit of matter?
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Which of the following is an example of a eukaryotic cell?
Which of the following is an example of a eukaryotic cell?
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Which of the following is NOT a type of tissue?
Which of the following is NOT a type of tissue?
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What distinguishes autotrophs from heterotrophs?
What distinguishes autotrophs from heterotrophs?
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Which of the following statements regarding taxonomy is false?
Which of the following statements regarding taxonomy is false?
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What is the primary process involved in forming a polymer from monomers?
What is the primary process involved in forming a polymer from monomers?
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Which type of bond links monosaccharides together to form polysaccharides?
Which type of bond links monosaccharides together to form polysaccharides?
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Which type of microscopy offers the highest resolution for observing cell structures?
Which type of microscopy offers the highest resolution for observing cell structures?
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What distinguishes saturated fats from unsaturated fats?
What distinguishes saturated fats from unsaturated fats?
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Which statement accurately reflects a difference between prokaryotic and eukaryotic cells?
Which statement accurately reflects a difference between prokaryotic and eukaryotic cells?
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Which of the following organelles is primarily responsible for ATP production?
Which of the following organelles is primarily responsible for ATP production?
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What is the primary function of the ribosome within a cell?
What is the primary function of the ribosome within a cell?
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What characteristic of lipids prevents them from mixing well with water?
What characteristic of lipids prevents them from mixing well with water?
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What is the main idea behind Charles Darwin's theory of evolution by natural selection?
What is the main idea behind Charles Darwin's theory of evolution by natural selection?
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Which of the following is not one of the four postulates of natural selection?
Which of the following is not one of the four postulates of natural selection?
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Which statement correctly defines 'matter'?
Which statement correctly defines 'matter'?
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Which of the following statements is true regarding atomic structure?
Which of the following statements is true regarding atomic structure?
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What type of bond is formed through the transfer of electrons?
What type of bond is formed through the transfer of electrons?
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Which property of water results from its polar nature?
Which property of water results from its polar nature?
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What is the pH range of a basic substance?
What is the pH range of a basic substance?
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What does electronegativity refer to?
What does electronegativity refer to?
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Study Notes
A Good Hypothesis
- A good hypothesis is a testable and falsifiable statement.
- It predicts a relationship between variables and can be supported or rejected through experimentation.
Scientific Method Steps
- The scientific method follows a specific order: observation, question, hypothesis, prediction, experiment, analysis, and conclusion.
Properties of Life
- All living things share essential properties, including organization, metabolism, responsiveness, growth and development, reproduction, and adaptation.
Smallest Unit of Matter
- The smallest unit of matter is an atom.
Eukaryotic Cell Example
- A plant cell is a eukaryotic cell.
Not a Tissue Type
- Blood is not classified as a type of tissue.
Autotrophs vs. Heterotrophs
- Autotrophs produce their own food through processes like photosynthesis, while heterotrophs obtain nutrients from other organisms.
False Taxonomy Statement
- A statement that all organisms in the same genus must share the same species is false.
Polymer Formation
- Dehydration synthesis is the primary process involved in forming a polymer from monomers.
Polysaccharide Bond
- Glycosidic bonds link monosaccharides together to form polysaccharides.
Highest Resolution Microscopy
- Electron microscopy offers the highest resolution for observing cell structures.
Saturated vs. Unsaturated Fats
- Saturated fats lack double bonds between carbon atoms, while unsaturated fats have at least one double bond.
Prokaryotic vs. Eukaryotic Cells
- Prokaryotic cells lack a nucleus and other membrane-bound organelles, while eukaryotic cells have a nucleus and other membrane-bound organelles.
ATP Production
- Mitochondria are primarily responsible for ATP production within a cell.
Ribosome Function
- Ribosomes are responsible for protein synthesis within a cell.
Lipid Property Preventing Mixing with Water
- Lipids are hydrophobic, meaning they are "water-fearing" and do not mix well with water due to their nonpolar nature.
Charles Darwin's Theory
- Darwin's theory of evolution by natural selection proposes that organisms with traits that are better suited for their environment are more likely to survive and reproduce, passing on those favorable traits to their offspring.
Postulate of Natural Selection
- The assumption that individuals within a population vary in their traits is a key postulate of natural selection.
Matter Definition
- Matter is anything that has mass and takes up space.
Atomic Structure Truth
- The nucleus of an atom contains protons and neutrons, while electrons orbit the nucleus.
Electron Transfer Bond
- Ionic bonds are formed through the transfer of electrons.
Water Property from Polar Nature
- Water's ability to form hydrogen bonds is a consequence of its polar nature.
Basic Substance pH Range
- A basic substance has a pH range higher than 7.
Electronegativity
- Electronegativity refers to an atom's tendency to attract electrons when forming a bond.
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