Atomic Habits: Introduction

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Questions and Answers

Which concept explains the diversity of finch beak types observed by Darwin on the Galapagos Islands?

  • Genetic drift
  • Artificial selection
  • Natural selection (correct)
  • Random mutation

In a population of bacteria, some individuals possess a gene that confers resistance to a particular antibiotic. If this antibiotic is introduced into their environment, what is most likely to occur?

  • The antibiotic will have no effect on the bacterial population.
  • Bacteria lacking the resistance gene will die, while those with the gene will survive and reproduce. (correct)
  • All bacteria will develop resistance to the antibiotic.
  • The antibiotic will cause the bacteria to mutate, leading to resistance.

What process leads to the development of new species?

  • Genetic drift
  • Speciation (correct)
  • Mutation
  • Natural selection

What is the role of decomposers in biogeochemical cycles?

<p>To release carbon dioxide back into the atmosphere (D)</p> Signup and view all the answers

An isolated population of frogs is divided by a newly formed mountain range. Over many generations, the two resulting populations develop distinct mating rituals. If the mountain range erodes and the populations can interact again, what is the most likely outcome?

<p>The two populations will not interbreed due to reproductive isolation. (B)</p> Signup and view all the answers

Which of the following accurately describes the relationship between a habitat and a niche?

<p>A habitat is the physical place where an organism lives, while a niche describes an organism's role within its ecosystem. (D)</p> Signup and view all the answers

What is the significance of index fossils in relative dating?

<p>They are used to correlate rock strata across different locations. (D)</p> Signup and view all the answers

What is the role of bacteria in the nitrogen cycle?

<p>All of the above. (D)</p> Signup and view all the answers

If Simpson's Diversity Index (SDI) approaches 0, what does this indicate about the biodiversity of an area?

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

Which of the following is an example of a biome?

<p>A large area characterized by specific climate and vegetation, like a desert or rainforest. (A)</p> Signup and view all the answers

How does the burning of fossil fuels contribute to global warming?

<p>By releasing greenhouse gases, such as carbon dioxide, into the atmosphere. (D)</p> Signup and view all the answers

What is the role of mutations in natural selection?

<p>Mutations provide the raw material for genetic variation. (B)</p> Signup and view all the answers

What is the primary difference between homologous and analogous structures?

<p>Homologous structures have different functions but a similar structure due to shared ancestry, while analogous structures have similar functions but different structures due to convergent evolution. (C)</p> Signup and view all the answers

Which of the following is the most accurate description of 'selection pressure'?

<p>The environmental factors that influence survival and reproduction of a species. (C)</p> Signup and view all the answers

What is the ultimate source of variation within a population?

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

Which of the following contributes most to the rise in sea levels associated with global warming?

<p>Melting of polar ice caps and glaciers (A)</p> Signup and view all the answers

Which of the following best describes the process of fossilization?

<p>A process where organic material is gradually replaced by minerals. (B)</p> Signup and view all the answers

What is the role of the Thermohaline Conveyor Belt (THCB)?

<p>To move water and heat around the world. (C)</p> Signup and view all the answers

If a species is found only in zoos, what is its conservation status?

<p>Extinct in the wild (A)</p> Signup and view all the answers

How are carbon atoms cycled through an ecosystem?

<p>All of the above (D)</p> Signup and view all the answers

Flashcards

Ecology

The study of ecosystems.

Biotic Factor

Any living organism that influences survival.

Abiotic Factor

Any non-living factor that influences survival.

Habitat

The place where an organism lives.

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Niche

The place within the ecosystem where the organism lives.

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Biome

An area with a dominant vegetation and climate.

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Species

A group of reproductively isolated organisms.

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Biodiversity

The range in all life forms in a particular area.

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Threatened

Likely to become endangered in the future.

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Extinct

Not found anywhere.

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Photosynthesis

Carbon dioxide removed to glucose.

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Cellular Respiration

Glucose converted to carbon dioxide.

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Assimilation

Carbon becomes part of an organism.

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Decomposition

Carbon becomes an inorganic molecule.

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Combustion

Burning of fossil fuels and wood.

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Fixation

Lightning fixes atmospheric nitrogen.

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Nitrifying Bacteria

Turn nitrogen compounds into nitrates.

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Ammonification

Turn nitrogen compounds to ammonium.

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Homologous Features

Same structure, different function, divergent evolution.

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Analogous Features

Different structure, same function, convergent evolution.

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Study Notes

Introduction

  • Small changes yield big results over time.
  • Habits can either help or hurt you.

The Fundamentals: Tiny Changes, Big Difference

  • Habits are the compound interest of self-improvement.
  • Improving 1% daily accumulates significantly in the long term.
  • Success stems from daily habits, not rare, major transformations.
  • It is more beneficial to focus on systems rather than setting goals.
  • Your systems determine your level of achievement.

How Your Brain Works: The Science of Habit Formation

  • A habit is a behavior repeated enough to become automatic.
  • Habits solve life's problems with minimal energy.
  • Conscious thought is usually a bottleneck in the brain, making habit formation useful.

The Habit Loop

  • Habits form through a four-step process: cue, craving, response, reward
  • Cue: It initiates the behavior.
  • Craving: It is the motivation behind the habit.
  • Response: It's the habit you perform.
  • Reward: It is the end goal.
  • The brain processes these steps in order each time.

The Science of Reward

  • Rewards satisfy cravings.
  • They teach us which actions are worth remembering.

Building a Better Habit: The Four Laws of Behavior Change

  • These laws help in building good habits and breaking bad ones.
    • 1st Law: Cue
      • Good Habit: Make it Obvious
      • Bad Habit: Make it Invisible
    • 2nd Law: Craving
      • Good Habit: Make it attractive
      • Bad Habit: Make it Unattractive
    • 3rd Law: Response
      • Good Habit: Make it Easy
      • Bad Habit: Make it Difficult
    • 4th Law: Reward
      • Good Habit: Make it Satisfying
      • Bad Habit: Make it Unsatisfying

The 1st Law: Make It Obvious

  • Begin with a habit scorecard.
  • List daily habits, marking "+" for good, "-" for bad, and "=" for neutral.

Implementation Intention

  • Planning when and where to perform a new habit increases follow-through.
  • Implementation Intention Formula: "I will [behavior] at [time] in [location]."

Habit Stacking

  • Build a new habit by stacking it on top of an existing one.
  • Habit Stacking Formula: "After I [current habit], I will [new habit]."

The 2nd Law: Make It Attractive

  • Temptation bundling pairs an action to do with an action needed to do.
  • Joining a culture where the desired behavior is normal is beneficial.
  • Tribe membership enhances motivation.

The 3rd Law: Make It Easy

  • Reduce friction to increase the likelihood of performing a behavior.
  • "Prime the environment" by preparing it to simplify future actions.
  • Ritualizing the beginning of a process aids in achieving deep focus.

The Two-Minute Rule

  • Start new habits in two minutes or less.
  • This makes habits easy to start.
    • "Read before bed each night" becomes "Read one page".
    • "Do thirty minutes of exercise" becomes "Put on my workout shoes".
    • "Study for class" becomes "Open my notes".

The 4th Law: Make It Satisfying

  • Repeating a behavior is more likely when the experience is satisfying.
  • Missing once is an accident, missing twice starts a new habit.
  • Get back on track as soon as possible.
  • Habit tracking measures whether you performed a habit.
  • Visual proof from habit trackers can be motivating.
  • Progress is the most effective form of motivation.

Advanced Tactics

  • Genes determine area of opportunity, not destiny.
  • Professionals stick to schedules, while amateurs let life interfere.
  • Excellence requires fascination with repetition.
  • The Goldilocks Rule suggests peak motivation occurs when working on tasks at the edge of current abilities.
  • Reflection and review promote honesty and self-awareness.
  • Habits, combined with deliberate practice, lead to mastery.

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