Transcript Biology: the study of life - Sonoma Valley High School

Biology: the big ideas
lesson 1.3b
Life at every level
 Biology studies a
wide range of living
things: from small to
huge.
 Biochemistry is the
study of chemicals
within living things
 Ecology is the study
of the interaction of
living things & their
environment
Levels of organization: largest
Biosphere
Ecosystem
The part of Earth
that contains all
ecosystems
Biosphere
Community and
its nonliving
surroundings
Hawk, snake, bison, prairie dog, grass, stream, rocks, air
Community
Populations that
live together in a
defined area
Population
Group of
organisms of one
type that live in
the same area
Hawk, snake, bison, prairie dog, grass
Bison herd
to smallest
Organism
Groups of
Cells
Individual living
thing
Bison
Tissues, organs,
and organ systems
Nervous tissue
Brain
Nervous system
Nerve cell
Cells
Molecules
Smallest functional
unit of life
Groups of atoms;
smallest unit of
most chemical
compounds
Water
DNA
Whiteboard: what level to we belong to?
The “big ideas” of biology
 Science is a way of knowing
– Science is more than a
collection of facts
 Nature is interdependent
– Everything in nature interacts
 Matter & energy interact
– Living things convert matter
into energy to live
Pair/share: what is an example of inter
action not pictured here?
 Information and heredity
– Life’s processes are
directed by the
information stored in the
genetic code
 Unity and diversity
– All living things are made
up of the same
molecules, yet are
incredibly diverse
 The cellular basis of life
– All life forms are made up
of cells
 Evolution
– Living things have changed
over the history of the earth
 Structure and function
– Living structures reflect their
function
 Homeostasis
– Living things use energy to
maintain their internal
environment
P/S: how do birds wings
help them fly?
archaeopteryx
Summary
Today’s talk was about………………….
I already knew that……………………
I just learned about………………..
I’d like to learn more about………………….