Unit 1 Biology Study Guide – Step-by-Step Guidance

Q1.1.1 Define biology.

Background

Topic: Introduction to Biology

This question is testing your understanding of what biology is as a scientific discipline.

Key Terms

• Biology: The scientific study of life and living organisms.

Step-by-Step Guidance

1. Think about what all living things have in common and what the study of biology focuses on.

2. Recall that biology is a branch of science, so consider what makes it distinct from other sciences (like chemistry or physics).

3. Try to phrase your definition to include both the study of life and the processes that sustain life.

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Q1.1.2 How do we recognize life?

Background

Topic: Characteristics of Living Things

This question asks you to consider the criteria or features that distinguish living things from non-living things.

Key Terms

• Life: A condition that distinguishes living organisms from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual adaptation.

Step-by-Step Guidance

1. Recall the main characteristics that all living things share (these are often summarized as the "properties of life").

2. Think about examples of living and non-living things and what features set them apart.

3. List the observable traits or processes that scientists use to determine if something is alive.

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Q1.1.3 Briefly describe each of the seven properties of life.

Background

Topic: Properties of Life

This question is testing your ability to recall and explain the seven key characteristics that define living organisms.

Key Terms

• Properties of Life: The seven features that all living things share.

Step-by-Step Guidance

1. List the seven properties (such as order, regulation, growth and development, energy processing, response to environment, reproduction, and evolutionary adaptation).

2. For each property, write a brief description or example that illustrates what it means.

3. Consider how each property helps distinguish living things from non-living things.

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Q1.2.1 How do scientists make sense of the vast array of living and extinct organisms?

Background

Topic: Biological Classification

This question is about taxonomy and how scientists organize and categorize the diversity of life.

Key Terms

• Taxonomy: The science of naming, defining, and classifying organisms.

• Classification: Arranging organisms into groups based on similarities and differences.

Step-by-Step Guidance

1. Think about the systems scientists use to group organisms (such as domains, kingdoms, etc.).

2. Consider why classification is important for understanding relationships among organisms.

3. Recall the hierarchical structure used in biological classification.

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Q1.2.2 How is a particular species named in this system? What is our species name?

Background

Topic: Binomial Nomenclature

This question is about the scientific naming system for organisms and specifically the name for humans.

Key Terms

• Binomial Nomenclature: The two-part scientific naming system for species (genus and species).

• Species Name: The unique name given to each species, usually in Latin.

Step-by-Step Guidance

1. Recall the format for writing a species name (Genus species).

2. Think about the rules for capitalization and italicization in scientific names.

3. Identify the genus and species name for humans.

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Q1.2.3 What, in order, are the broader and broader groups a species fits into?

Background

Topic: Taxonomic Hierarchy

This question is about the levels of classification from most specific to most general.

Key Terms

• Taxonomic Ranks: Levels such as species, genus, family, order, class, phylum, kingdom, domain.

Step-by-Step Guidance

1. Start with the most specific group (species) and move up to the most general (domain).

2. List each rank in order and briefly describe what each level represents.

3. Consider using a mnemonic to help remember the order.

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Q1.2.4 What are the main characteristics of Domain Bacteria? Domain Archaea? Domain Eukarya?

Background

Topic: Domains of Life

This question is about the three-domain system and the distinguishing features of each domain.

Key Terms

• Domain: The highest taxonomic rank in the classification of organisms.

• Bacteria, Archaea, Eukarya: The three domains of life.

Step-by-Step Guidance

1. For each domain, list the main cellular and genetic characteristics.

2. Note differences in cell structure, presence of nucleus, and typical environments.

3. Give examples of organisms in each domain.

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