COPY: Human Biology and Science Quiz
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Questions and Answers

What is the smallest structural and functional unit of an organism?

  • Cell (correct)
  • Tissue
  • Molecule
  • Organ

Which level of biological organization consists of groups of interbreeding organisms?

  • Population
  • Species (correct)
  • Ecosystem
  • Community

What is the ultimate source of energy for life on Earth?

  • The sun (correct)
  • Water
  • Wind
  • Geothermal heat

Which of the following best describes metabolism?

<p>The chemical reactions occurring within cells (B)</p> Signup and view all the answers

What is an organism composed of?

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

In biological organization, what is a community?

<p>A group of different populations interacting (B)</p> Signup and view all the answers

Which level of biological organization describes the physical environment interacting with populations?

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

What is a primary source of nutrients for humans?

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

Which kingdom of the domain Eukarya primarily consists of organisms that perform photosynthesis?

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

Which of the following organisms is classified as a vertebrate?

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

What characteristic distinguishes mammals from other vertebrates?

<p>Presence of hair or fur and mammary glands (B)</p> Signup and view all the answers

Which of the following kingdoms includes organisms primarily known as invertebrates?

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

Humans belong to which kingdom under the domain Eukarya?

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

Which group of eukaryotes is known for their diverse modes of nutrition including absorption of nutrients?

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

Which of the following is NOT a characteristic of vertebrates?

<p>Lack of a nerve cord (A)</p> Signup and view all the answers

Which kingdom includes organisms that are often single-celled or multicellular and primarily live in aquatic or moist environments?

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

What is the primary role of sugars in the food chain?

<p>They serve as a basis for the food chain for other organisms. (A)</p> Signup and view all the answers

What is homeostasis?

<p>The ability of an organism to maintain a constant internal environment. (A)</p> Signup and view all the answers

What occurs during the development of an organism?

<p>The organism increases in size and the number of cells. (A)</p> Signup and view all the answers

How can mutations be beneficial in the context of evolution?

<p>They can create variations that make organisms better suited for their environment. (C)</p> Signup and view all the answers

What is the mechanism by which evolution occurs?

<p>Natural selection. (D)</p> Signup and view all the answers

Which of the following is a characteristic that distinguishes Eukarya from Bacteria and Archaea?

<p>Eukaryotic cells contain a nucleus. (C)</p> Signup and view all the answers

What is an adaptation in the context of evolutionary biology?

<p>A feature that enhances an organism's ability to survive and reproduce. (D)</p> Signup and view all the answers

Which domains of life contain prokaryotes?

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

What distinguishes humans from apes?

<p>Highly developed brains (B)</p> Signup and view all the answers

In which domain do humans belong?

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

What is the first step in the scientific method?

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

Which statement best describes a hypothesis?

<p>A possible explanation for an observation (D)</p> Signup and view all the answers

What role do test groups serve in an experiment?

<p>To observe the effect of the independent variable (A)</p> Signup and view all the answers

What is an essential characteristic of the independent variable in an experiment?

<p>It is the variable that is manipulated (B)</p> Signup and view all the answers

Which step follows analyzing data/results in the scientific method?

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

What is the purpose of background research in the scientific method?

<p>To develop a hypothesis (D)</p> Signup and view all the answers

What is the primary purpose of analyzing data in scientific experiments?

<p>To determine whether the hypothesis is supported (C)</p> Signup and view all the answers

In a double-blind study, which of the following statements is true?

<p>Neither the doctors nor the patients know the treatment assignment (C)</p> Signup and view all the answers

What role do graphs play in data presentation?

<p>They help summarize data in a concise format (B)</p> Signup and view all the answers

Why is a controlled group important in an experiment?

<p>It serves as a baseline for comparison (D)</p> Signup and view all the answers

How can the conclusion of one experiment influence future studies?

<p>By leading to the development of new hypotheses (C)</p> Signup and view all the answers

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