Chapter 4 - Ecology
Section 1 - Ecosystems: Everything is Connected
VOCAB WORDS
Ecosystem - all the
living in an area together with their
physical environment.
Biotic Factor - (
animals,
Abiotic Factor - (
ecosystem. E.g.) Air, Water,
) All the organisms, including
, bacteria, and
.
) All the nonliving parts of the
, sand, and
.
Organism Species - a group of organisms that can
Population - a group of the
.
that live in the
.
Community - a group of various species, or
the same place and interact with one another.
, that live in
Habitat -
QUESTIONS
1.) Ecosystems are composed of two factors:
a.) ______________________ - all the different organisms living in an area
b.) ______________________ - the physical environment
2.) Give an example of a organism within a population, which both live in a
community. Draw it below.
Chapter 4 - Ecology
Section 2 - Evolution
VOCAB WORDS
Natural Selection - the process by which individuals that are better
adapted to their environment
success than less well adapted individuals do.
with more
Evolution - A change in the
of a population
from one generation to the next.
Adaption - An
that increases an organism's
chance at
and
in a certain environment.
Artificial Selection - The
of organisms by
humans for specific characteristics.
Resistance - The ability of one or more organisms to
designed to kill it.
QUESTIONS
1.) Over many generations
characteristics of populations to change.
THE 4 ASSUMPTIONS OF EVOLUTION
BY NATURAL SELECTION
1
2
3
4
causes the
EXAMPLE OF THE EVOLUTION OF
RESISTANCE