Introduction to Biology
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Questions and Answers

What does the study of biology primarily focus on?

  • The scientific study of life (correct)
  • The history of civilization
  • The structure of the Earth
  • The composition of stars

Which of the following is a core principle of biology related to the composition of living organisms?

  • Quantum physics
  • Cell theory (correct)
  • Electromagnetism
  • Gravity

According to biological principles, how are traits typically inherited?

  • Through genes (correct)
  • Through legends
  • Through cultural transmission
  • Through environmental factors

Which biological principle explains how the diversity of life has changed over time?

<p>Evolution (A)</p> Signup and view all the answers

What is the term for the process by which living organisms maintain a stable internal environment?

<p>Homeostasis (A)</p> Signup and view all the answers

Which level of biological organization is considered the basic unit of life?

<p>Cell (C)</p> Signup and view all the answers

Which of these studies focuses on the interactions between organisms and their environment?

<p>Ecology (A)</p> Signup and view all the answers

Which type of cell contains a nucleus and other membrane-bound organelles?

<p>Eukaryotic cell (B)</p> Signup and view all the answers

What is the term for the observable characteristics of an organism?

<p>Phenotype (A)</p> Signup and view all the answers

Which process involves the passing of traits from parents to offspring?

<p>Inheritance (B)</p> Signup and view all the answers

What is natural selection?

<p>The process by which advantageous traits are more likely to be passed on (D)</p> Signup and view all the answers

What are the living organisms in an ecosystem referred to as?

<p>Biotic factors (C)</p> Signup and view all the answers

What process do plants use to convert light energy into chemical energy?

<p>Photosynthesis (C)</p> Signup and view all the answers

Which type of tissue covers surfaces of the body?

<p>Epithelial (B)</p> Signup and view all the answers

Which system regulates body functions through hormones?

<p>Endocrine system (C)</p> Signup and view all the answers

Which of the following is a prokaryotic microorganism?

<p>Bacteria (A)</p> Signup and view all the answers

What is the breakdown of glucose to release energy in cells called?

<p>Cellular respiration (C)</p> Signup and view all the answers

What is the first step of the scientific method?

<p>Observation (D)</p> Signup and view all the answers

Flashcards

Biology

The scientific study of life, from molecules to ecosystems.

Cell Theory

All living organisms are made of cells, and cells come from pre-existing cells.

Gene Theory

Traits are passed down through specific sequences of DNA.

Evolution

Life diversifies over time through mutation, selection, and genetic change.

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Homeostasis

Maintenance of a stable internal environment.

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Genetics

The study of heredity and genes.

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Eukaryotic Cells

Cells with a nucleus and membrane-bound organelles.

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DNA

Molecule that carries genetic information.

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Genes

Specific DNA sequences coding for proteins.

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Chromosomes

Structures of DNA containing genes.

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Genotype

Organism's genetic makeup.

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Phenotype

Observable organism characteristics.

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Inheritance

Passing traits to offspring.

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Meiosis

Cell division halves chromosome number for sex cells.

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Mitosis

Cell division creates identical copies for growth.

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Natural Selection

Process where advantageous traits aid survival and reproduction.

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Biotic Factors

Living organisms in an environment.

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Abiotic Factors

Non-living environment components.

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Description

Biology is the scientific study of life, covering molecular mechanisms to ecosystem interactions. Core principles include cell theory, gene theory, evolution, homeostasis and thermodynamics. Biological organization spans molecules, cells, tissues, and organs, each with specific functions.

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