Board Work

What are some characteristics of living things?

Which of these characteristics does each object have

Chapter 1: What is Biology?Collecting Biological Data

Biology - The Study of Life

“Bios” = Life

“logos” = Study

Biology = The study of life

Biologists Study the Diversity of Life

Biologists study the interactions of life

Biologists study the interactions of the environment

Biologists study problems and propose solutions - i.e. medical treatment, disease prevention etc.

What is an Organism?

All living things are organisms

Characteristics of Living Things

Organization

Reproduction

Growth and Development

Ability to adjust to Environment

Living things adapt and evolve

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Organization

All living things are composed of one or more cells

Each cell contains DNA

All parts function together in an orderly living system

Reproduction

SpeciesThey can interbreed

The offspring that they produce are fertile

Growth and Development

Growth - Results in more living material and forms new structures

Development - All changes that take place during the life of an organism

Ability to adjust to Environment

Environment - air, weather, temperature, other organisms, and many other factorsStimulus: Any condition that requires a responseResponse: Reaction to a stimulusHomeostasis: maintaining conditions suitable for survival - takes energy

Living Things Adapt and Evolve

Adaptation: Any structure, behavior, or internal process that enables an organism to respond to stimuli and better survive in an environment

Evolution: gradual accumulation of adaptations over time

Chapter 11.2 - The Methods of Biology

The Scientific Method

Make observations

And collect data that

Lead to a question

Formulate Hypothesis

Test Hypothesis: Experiments - collect data

Interpret Results, and revise the hypothesis if

necessary

State Conclusions in a form that can be

evaluated by others SCIENTIFICALLY

PROVENX

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The Scientific Method

Examples of the scientific method

Controlled Experiments

Control Group

All conditions kept the same

Experimental Group

All conditions kept the same EXCEPT ONE

Controlled Experiments

Frog Egg Experiment

The Variables in an Experiment

Independent Variable

The condition in an experiment that is changed

There should only be one independent variable

Dependent Variable

A condition in an experiment that changes because the independent variable changed

Controlled Experiments

Frog Egg Experiment

Independent Variable = UV light

Controlled Experiments

Frog Egg Experiment

Dependent Variable = Size of Eggs

Scientific Tools

Beakers

Test tubes

Hot plates

Petri dishes

Graduated cylinders

Dissecting instruments

Microscopes

Theories and laws

Theory: A hypothesis that is supported over a long period of time.

Law: Fact of nature that is generally known to be true. E.g. the law of gravity (what goes up must come down).

Chapter 11.3 - The Nature of Biology

2 Kinds of Research

Quantitative: dealing with numerical data (counts/measurements)

Uses the International system of measurement (SI)

meter

gram

liter

second

Celsius

2 Kinds of Research

Quantitative: dealing with numerical data (counts/measurements)

Uses the International system of measurement (SI)

meter (length)

gram (weight)

liter (volume)

second (time)

Celsius (temperature)

2 Kinds of Research

Descriptive: Uses written descriptions of what a scientist observes. E.g. Animal behavior

Science and Society

Ethics: moral principles and values held by humans

Society plays a vital role in determining what is ethical or not ethical when it comes to science

Why should I care about science?

Does God care about science?

Misconceptions about the relationship between Science and Religion

Science has all the facts

Science and religion should be separate and independent from each other

If science does not agree with the Bible, then bend the bible a little

True Science

“God is the foundation of everything. All true science is in harmony with His works; all true education leads to obedience to His government.”