Download The Study of Life

Chapter 1, Section 1
Introduction to Biology
 In the next two minutes, list 10
things that we will study in Biology
Chapter 1, Section 1
2
 Biology is the science of life
 Study the origins and history of life and
once-living things
 Study the structures of living things
 Study how living things interact with one
another
 Study how living things function
Chapter 1, Section 1
3
 Study the diversity of life
 Research diseases
 Develop technologies (Velcro)
 Improve agriculture
 Preserve the environment
Chapter 1, Section 1
4
Chapter 1, Section 1
5
 Made up of one or more
 Responds to Stimuli
Cells
 Displays Organization
 Grows and Develops
 Reproduces
 Requires Energy
 Maintains Homeostasis
 Adaptations Evolve over
time
An organism is anything that has or once had all of
these characteristics
Chapter 1, Section 1
6
 All living things are made up of one or more cells
 Cells are highly organized, tiny structures with
thin coverings called membranes
 a cell is the smallest unit capable of all life
functions
 the basic structure of the cell is the same in all
organisms
Chapter 1, Section 1
7
 Living things also display
organization, which means they are
arranged in an orderly way.
 Specialized cells are organized into
groups that work together called
tissues.
 Tissues are organized into organs.
 Organ systems work together to
support an organism.
Chapter 1, Section 1
8
 Growth results in the addition of mass to an organism
and, in many organisms, the formation of new cells
and new structures.
 Development is the process of natural changes that
take place during the life of an organism
Chapter 1, Section 1
9
 Reproduction is the process by which organisms
make more of their own kind form one generation
to the next
 without reproduction SPECIES could not continue
 A species is a group of organisms that can breed
with one another and produce fertile offspring.
Chapter 1, Section 1
10
 Anything that is part of
the internal or external
environment and
causes some sort of
reaction by the
organism is called a
stimulus.
 The reaction to a
stimulus is a response
Chapter 1, Section 1
11
 living organisms perform many different chemical
reactions in order to obtain and use energy to run the
processes of life
 energy is needed to grow, move, and process information
 metabolism is the sum of all chemical reactions carried
out in an organism
 almost all energy used by living organisms is captured from
sunlight
 energy flows from sunlight to plants, from plants to
plant-eating organisms, from plant-eaters to meateaters
Chapter 1, Section 1
12
 all organisms must maintain a stable internal
environment in order to function properly
 organisms respond to changes in their external
environment, adjusting their processes accordingly
 homeostasis is the maintenance of this internal
environment in spite of external changes
Chapter 1, Section 1
13
 An adaptation is any
inherited characteristic
that results from changes
to a species over time.
 change in inherited traits
of a species over time is
called evolution
 organisms with genes that
allow them to better meet
nature’s challenges are
more likely to survive
 this is Darwin’s theory
of natural selection
Chapter 1, Section 1
14
 M
 O
 R
 S
 E
 C
 O
 D
 E
Maintain homeostasis
displays Organization
Reproduction
responds to Stimulus
Evolves and adapts
made of 1 or more Cells
(doesn’t stand for anything)
grows and Develops
requires Energy
Chapter 1, Section 1
15
 Make a foldable of the characteristics of life using the
pneumatic word you came up with.
 Draw a picture for each characteristic of life
 Complete pages 2-4 in your Science Notebook
Chapter 1, Section 1
16
1.1 Formative Questions
What area of science takes scientific
knowledge and applies it to meet human
needs?
A. exploration
B. dynamics
C. physics
D. technology
1.1 Formative Questions
What is the process of change that takes
place during the life of an organism?
A. adaptation
B. development
C. growth
D. maturation
1.1 Formative Questions
Some species of plants begin opening their
flowers in the morning when they are exposed
to sunlight. What characteristic of living things
does this represent?
A. acquiring energy
B. adapting to the environment
C. displaying organization
D. responding to stimuli
1.1 Formative Questions
What process regulates an organism’s internal
conditions and keeps them stable?
A. adaptation
B. equilibrium
C. homeostasis
D. metabolism
1.1 Formative Questions
What process regulates an organism’s internal
conditions and keeps them stable?
A. adaptation
B. equilibrium
C. homeostasis
D. metabolism
1. What is biology?
2.What does it mean to be alive/ what makes
something alive?
3.What is the difference between living, non-living
and dead?