Biology Concepts and Evolutionary Theory

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does the principle of uniformitarianism imply about the Earth?

  • The processes shaping the Earth now are different from those in the past.
  • Changes in the Earth's surface are due to catastrophic events.
  • The Earth is static and unchanging.
  • The Earth is older than a few thousand years. (correct)

What impact did Malthus' ideas have on evolutionary thought?

  • They focused solely on the role of climate in species development.
  • They introduced the concept of artificial selection.
  • They highlighted competition for resources as a driver for population dynamics. (correct)
  • They emphasized the importance of genetic variation.

Which observation did Darwin make that influenced his ideas about species variation?

  • Climate similarities did not affect species differences.
  • Species in the Galapagos Islands were identical to those in Europe.
  • There were 13 distinct finch species on the Galapagos Islands. (correct)
  • Species patterns were consistent globally.

What key concept did Wallace contribute to evolutionary theory?

<p>Species patterns and distributions may indicate common ancestry despite separation. (B)</p> Signup and view all the answers

Which of the following statements accurately reflects the principles of natural selection?

<p>Heritable variation is essential for selective pressures to act. (C)</p> Signup and view all the answers

What is the basic living unit of all organisms?

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

Which type of cell is characterized by the absence of a nucleus?

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

What process involves combining genetic information from two parents?

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

How do plants typically reproduce using pollen?

<p>By attracting insects to transfer pollen (A)</p> Signup and view all the answers

Which characteristic involves an organism responding to its environment?

<p>Response to stimuli (D)</p> Signup and view all the answers

Which organ system is responsible for gas exchange?

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

What is the primary function of the cardiovascular system?

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

Which of the following organs is part of the urinary system?

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

Which organ system controls other organs via electrical stimuli?

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

The major organs in the integumentary system include which of the following?

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

What is one of the main functions of the lymphatic system?

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

Humans are classified under which domain of life?

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

What is the primary focus of the digestive system?

<p>Digesting food and absorbing nutrients (C)</p> Signup and view all the answers

Which organ is NOT part of the reproductive system?

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

Which organ system is mainly responsible for movement?

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

What is the largest level of classification in biological taxonomy?

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

Which of the following domains contains prokaryotic cells?

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

Which of the following kingdoms is classified under the domain Eukarya?

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

What term describes the scientific method of confirming theories through observation?

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

What is the correct format for writing a scientific name using binomial nomenclature?

<p>Genus capitalized, Species lowercase (A)</p> Signup and view all the answers

What does antibiotic resistance in bacteria demonstrate over time?

<p>A gradual increase in resistance to antibiotics (C)</p> Signup and view all the answers

What do homologous structures imply about different species?

<p>They share a common ancestor (C)</p> Signup and view all the answers

What does genetic homology reveal among species?

<p>Shared ancestry based on DNA similarities (C)</p> Signup and view all the answers

What is allopatric speciation?

<p>Isolation of a population leading to divergence (C)</p> Signup and view all the answers

What is a vestigial structure?

<p>A structure that is present but no longer functional (A)</p> Signup and view all the answers

Which of the following best describes natural selection?

<p>The survival of individuals due to favorable adaptations (C)</p> Signup and view all the answers

What role does genetic drift play in evolution?

<p>It causes random changes in gene frequencies, mainly in small populations (A)</p> Signup and view all the answers

What could be a barrier to breeding between species?

<p>Cues that trigger mating occurring at different times (A)</p> Signup and view all the answers

What happens to the body when temperature drops below normal?

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

Which process do plants use to convert $CO_2$ and water into glucose?

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

What is the main consequence of burning fossil fuels on the carbon cycle?

<p>Release of $CO_2$ into the atmosphere (C)</p> Signup and view all the answers

Which statement about animal respiration is correct?

<p>Animals produce $CO_2$ and energy from organic molecules (B)</p> Signup and view all the answers

What is a recent observation in the trend of global average temperature?

<p>It has been gradually increasing since 1970 (D)</p> Signup and view all the answers

How does photosynthesis affect atmospheric carbon dioxide levels during summer?

<p>It causes a decrease in $CO_2$ concentration (C)</p> Signup and view all the answers

What role do fossilized organisms play in the carbon cycle?

<p>They can form fossil fuels which release $CO_2$ when burned (B)</p> Signup and view all the answers

Which factor primarily contributes to the increase in atmospheric carbon dioxide concentration?

<p>Burning fossil fuels (D)</p> Signup and view all the answers

Flashcards

Uniformitarianism

The idea that the same geological processes happening today also occurred in the past, shaping the Earth throughout its history.

Natural Selection

Darwin's theory that individuals with traits better suited for their environment are more likely to survive and reproduce, passing those beneficial traits to their offspring.

Wallace's Line

The observation that species are distributed in specific patterns based on their geographic location and environmental factors, even if they appear similar to other species in different regions.

Artificial Selection

The idea that humans can select and breed organisms for specific traits, showing the power of selective breeding, influencing Darwin's thinking about natural selection.

Signup and view all the flashcards

Struggle for Survival

The struggle for survival, as observed by Malthus, where individuals compete for resources (like food) and only the fittest survive, influencing Darwin's concept of natural selection.

Signup and view all the flashcards

Respiratory System

The system in your body that allows you to breathe and take in oxygen.

Signup and view all the flashcards

Nervous System

The system that controls and coordinates all your body's actions.

Signup and view all the flashcards

Skeletal System

The system that provides support, structure, and protection for your body.

Signup and view all the flashcards

Urinary System

The system that filters waste from your blood and helps regulate water balance.

Signup and view all the flashcards

Muscular System

The system that allows your body to move.

Signup and view all the flashcards

Cardiovascular System

The system that transports blood, oxygen, and nutrients throughout your body.

Signup and view all the flashcards

Lymphatic System

The system that protects your body from infection and disease.

Signup and view all the flashcards

Integumentary System

The system that protects your body from the outside world.

Signup and view all the flashcards

Reproductive System

The system that allows you to reproduce.

Signup and view all the flashcards

Endocrine System

The system that produces hormones that regulate many bodily functions.

Signup and view all the flashcards

What is a cell?

The smallest unit of life capable of performing all life functions.

Signup and view all the flashcards

What are organelles?

Organized structures within a cell that carry out specific functions.

Signup and view all the flashcards

What is a eukaryotic cell?

A type of cell with a nucleus and other membrane-bound organelles.

Signup and view all the flashcards

What is a prokaryotic cell?

A type of cell without a nucleus or membrane-bound organelles. They are typically smaller than eukaryotic cells.

Signup and view all the flashcards

What is Reproduction?

The process by which living things produce offspring.

Signup and view all the flashcards

Homeostasis

Maintaining a stable internal environment despite external changes.

Signup and view all the flashcards

How does the body maintain homeostasis?

The process by which living organisms maintain a stable internal environment, like body temperature or blood sugar.

Signup and view all the flashcards

Photosynthesis

The conversion of light energy into chemical energy in the form of glucose.

Signup and view all the flashcards

Cellular Respiration

The process of breaking down glucose to release energy in the form of ATP.

Signup and view all the flashcards

Carbon Cycle

The continuous movement of carbon atoms within the Earth's systems.

Signup and view all the flashcards

Global Warming

The increase in the average temperature of the Earth's atmosphere.

Signup and view all the flashcards

Carbon Dioxide ($CO_2$)

The primary greenhouse gas responsible for global warming.

Signup and view all the flashcards

Evolution

The process by which organisms change over time in response to their environment.

Signup and view all the flashcards

Domain

The broadest category in biological classification, encompassing all life forms.

Signup and view all the flashcards

Phylum

A group of organisms with a shared common ancestor, representing a higher-level grouping than a class.

Signup and view all the flashcards

Class

A group of organisms that share a common ancestor and more specific characteristics than phyla, encompassing multiple Orders.

Signup and view all the flashcards

What is science?

A scientific approach to understanding the natural world by observing, experimenting, and testing hypotheses.

Signup and view all the flashcards

Empirical

Provable or verifiable through observation or experimentation.

Signup and view all the flashcards

Antibiotic Resistance

The emergence of resistant bacteria against antibiotics demonstrates the rapid pace of evolution.

Signup and view all the flashcards

Homologous Structures

Similar bone structures in different species, like the arm of a human and the wing of a bat, suggest a shared ancestor.

Signup and view all the flashcards

Vestigial Structures

Structures that no longer serve a purpose but remain in a species, like the pelvic bones in whales, indicate evolutionary changes.

Signup and view all the flashcards

Genetic Homology

Similarities in DNA sequences between different species are evidence of common ancestry and shared evolutionary history.

Signup and view all the flashcards

Allopatric Speciation

A population splits and diverges due to isolation and different selection pressures, eventually leading to distinct species.

Signup and view all the flashcards

Fossils

Fossils, like those of Archaeopteryx, showcasing traits of both dinosaurs and birds, reveal the gradual change in species over time.

Signup and view all the flashcards

Convergent Evolution

Organisms from different lineages evolve similar traits independently, like sharks and dolphins, because of similar environments and needs.

Signup and view all the flashcards

Study Notes

Organ Systems of the Human Body

  • Respiratory System: Lungs, trachea, nose, pharynx, and throat. Function: gas exchange.
  • Nervous System: Brain and spinal cord. Function: controls other organs via electrical stimuli.
  • Skeletal System: Bones, cartilage, joints, and muscles. Function: support and protection.
  • Urinary System: Bladder, kidney, and ureter. Function: water balance and remove waste.
  • Muscular System: Deltoid, femur, and bicep. Function: movement.
  • Cardiovascular System: Heart, arteries, and veins. Function: transport.
  • Lymphatic System: Lymph nodes, thymus, and spleen. Function: fight infection.
  • Integumentary System: Skin, hair, nails, and sensory nerves. Function: protection, thermoregulation.
  • Reproductive System: Gonads and external genitalia. Function: babies.
  • Endocrine System: Pancreas, thyroid, and hypothalamus. Function: controls other organs via hormones.
  • Digestive System: Esophagus, stomach, small/large intestine. Function: digest food and absorb nutrients.

Domains of Life

  • Bacteria, Eukarya, and Archaea are the three domains of life.
  • Escherichia coli belongs to the Eukarya domain.
  • Microbes living in the salt flats outside Salt Lake City belong to the Archaea domain.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

More Like This

Evolutionary Theory: Natural Selection
10 questions
Evolution Flashcards
4 questions

Evolution Flashcards

ImprovingSocialRealism4496 avatar
ImprovingSocialRealism4496
Evolution Overview Quiz
15 questions

Evolution Overview Quiz

TrustworthyEnlightenment1549 avatar
TrustworthyEnlightenment1549
Use Quizgecko on...
Browser
Browser