BIO 102

Page 1

  • Einstein's Equation:
    • E=mc2E = mc^2
    • The equation symbolizes the relationship between energy (E), mass (m), and the speed of light (c).
  • Comedic Reference:
    • Quotation on a desk appearance: “Now that desk looks better. Everything's squared away, yessir, squaaaaaared away.”

Page 2

  • Announcements:
    • Clicker points from the first class (1/20/26) are posted to Canvas.
    • Students advised to check for points with a registered turning point device.
    • A reminder for checking daily for upcoming assignments, particularly the first “Canvas assignment” based on five core concepts introduced last time.
    • Module 2 will be released by the weekend; this module will cover the mechanisms of evolution.

Page 3

  • Testable and Falsifiable Explanation:
    • A question regarding where the bread goes provides options, demonstrating testable hypotheses.
    • Possible answers include:
    • A. hypothesis
    • B. theory
    • C. anecdote
    • D. control
    • E. variable

Page 5

  • Conservation Issue:
    • Topic: Lead bullets and their environmental impact.
    • Date of study: March 15, 2018.
    • Source: University of Cape Town.
    • Summary: Lead bullet fragments left by hunters are poisoning endangered African vultures.

Page 6

  • Case Study on White-Nose Syndrome (WNS):
    • 2007 Discovery: Thousands of dead bats found in New York State.
    • Characterized by a white fuzz on the muzzles of affected bats.
    • Statistics: 6 million bats have died so far; 7 species affected, with 2 nearing extinction.
    • The syndrome has spread to 38 states and 8 Canadian provinces.

Page 8

  • Environmental Challenges:
    • Discussion about various predictable and unexpected challenges facing the environment.
    • The need for systematic collection and logical analysis of physical evidence for problem-solving.
    • Mention of the intersection of science and ecology.

Page 12

  • Definition of Science:
    • A way of knowing based on inquiry derived from the Latin verb meaning “to know.”
    • It's a systematic study of natural phenomena, evolving from human curiosity.
    • Science develops a body of knowledge as more information becomes available by:
    • Gathering evidence
    • Evaluating evidence quality
    • Drawing conclusions.

Page 13

  • Nature of Science:
    • Scientists pose questions measured through data collection.
    • The objective is to form hypotheses and find evidence supporting or contradicting them.
    • Biologists test ideas using carefully designed experiments based on predictions from alternative hypotheses.

Page 14

  • Strength of Hypotheses:
    • Emphasis on hypothesis-driven science, combining scientific method and logic to evaluate hypotheses.
    • A hypothesis is a tentative explanation based on collected evidence.
    • It's recognized that a hypothesis can never be proven, only supported.

Page 15

  • Best Testable Hypothesis Examples:
    • A: If bean plants are given fertilizer, they will grow taller than plants without fertilizer. (Valid testable).
    • B: If bean plants are given fertilizer, they will grow taller because nutrients are important (Not purely testable).
    • C: If bean plants receive 10g of nitrogen fertilizer weekly, they will grow taller than those with none over 21 days. (Most precise and valid).
    • D: If you hum a tune, plants will grow taller because they enjoy music. (Not testable).

Page 17

  • Scientific Evidence:
    • Required to be testable and falsifiable, averaged from hundreds to thousands of data points.
    • These data undergo rigorous statistical analysis and peer-review before publication in scientific journals.

Page 18

  • Certainty in Scientific Explanations:
    • Scientific certainty is contextually dependent on evidence: it increases with more evidence, but it is never absolute.

Page 20

  • Religion vs. Science Discussion:
    • Many people find no contradiction between their faith and scientific reasoning.
    • Science is confined to the physical realm; religious matters often delving into the supernatural are not addressed via scientific methods.

Page 21

  • Quote from Galileo Galilei:
    • “I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forego their use.”

Page 22

  • Quote from Katherine Coleman Goble Johnson:
    • “I counted everything. I counted the steps to the road, the steps up to church, the number of dishes and silverware I washed … anything that could be counted, I did.”

Page 23

  • Quote from Carl Sagan:
    • “Science is not only compatible with spirituality; it is a source of spirituality.”

Page 24

  • Quote from Neil deGrasse Tyson:
    • “So you’re made of detritus from exploded stars. Get over it or better yet, celebrate it. What nobler thought to cherish than that the universe lives within us all?”

Page 25

  • Discovery-Based Science vs. Hypothesis-Driven Science:
    • Discovery-Based Science: Characterizes natural phenomena; describes within observable patterns and correlations leading to testable hypotheses.
    • Hypothesis-Driven Science: Applies scientific method and logic to validate or invalidate a hypothesis through predictions and experimentation.

Page 27

  • Investigating Scientific Questions Process:
    • Curiosity: Observation leads to questions.
    • Investigation: Literature consultation and formulating new hypotheses.
    • Methodology: Make testable predictions, gather data, support/refute the hypothesis, and share findings.

Page 36

  • Biomimicry Definition:
    • The design and production of materials, structures, and systems modeled after biological entities and natural processes.

Page 37

  • Basic vs. Applied Science:
    • Basic Science (Pure Science): Expands knowledge with no immediate applications.
    • Applied Science: Utilizes scientific knowledge to address immediate problems.

Page 70

  • Winter Count of Bats with WNS:
    • Data representation of bat populations in colonies affected by WNS versus those that are not affected from 1985 to 2010.

Page 72

  • Study Objectives for Upcoming Classes:
    • Distinguish between hypothesis-based and discovery-based science.
    • Explain basic vs. applied science concepts.
    • Anatomy of scientific inquiry including roles of control, experimental, and placebo groups.
    • Understand independent and dependent variables, the significance of correlations, and the importance of sample size in scientific conclusions.