Textbook Notes (378,270)
CA (167,150)
UTSG (10,970)
BIO (604)
BIO120H1 (306)
Chapter 1

Chapter 1 notes

3 Pages
94 Views

Department
Biology
Course Code
BIO120H1
Professor
Ingrid L.Stefanovic

This preview shows page 1. Sign up to view the full 3 pages of the document.
BIO Chapter 1:
ecology, greek meaning house, study oh how organism interact in an
environment
Environmental supports systems: things on which humanity relies for fod,
water and protection against natural catastrophes.
Some examples of these are: watersheds, agriculture lands, and wetlands.
An ecological system may be an organism, a population, or assemblage of
populations together, an ecosystem or the biosphere.
Each smaller system is a subset (part) of the next larger one.
Most fundamental part of ecology: organism
Ultimately, all environments are linked together in a single biosphere [known
as the ultimate ecological system]
Population: many organisms of the same kind living together
Populations differ from organism because populations are potentially
immortal; births replace deaths
They also have roper ties such as geographic ranges, densities, and variations
in size or composition(evolutionary responses).
Community: populations of different kind make up an ecological community.
Communities have no visible boundries
Organism approach: the way in which an individuals form, physiology, and
behaviour help it to survive in its environment.
This explains why organisms are limited to certain environments
For instance, moist areas are home to trees, where as hot and dry areas are
home to shrubs with small leaves.
This helps one understand adaptations: modifications of structures or
function to better suit an organism increase survival + fitness
Population Approach: variations in the number of individuals, sex ratio, age,
genetic makeup
www.notesolution.com

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California
Description
BIO Chapter 1: ecology, greek meaning “house, study oh how organism interact in an environment Environmental supports systems: things on which humanity relies for fod, water and protection against natural catastrophes. Some examples of these are: watersheds, agriculture lands, and wetlands. An ecological system may be an organism, a population, or assemblage of populations together, an ecosystem or the biosphere. Each smaller system is a subset (part) of the next larger one. Most fundamental part of ecology: organism Ultimately, all environments are linked together in a single biosphere [known as the ultimate ecological system] Population: many organisms of the same kind living together Populations differ from organism because populations are potentially immortal; births replace deaths They also have roper ties such as geographic ranges, densities, and variations in size or composition(evolutionary responses). Community: populations of different kind make up an ecological community. Communities have no “visible” boundries Organism approach: the way in which an individuals form, physiology, and behaviour help it to survive in its environment. This explains why organisms are limited to certain environments For instance, moist areas are home to trees, where as hot and dry areas are home to shrubs with small leaves. This helps one understand adaptations: modifications of structures or function to better suit an organism increase survival + fitness Population Approach: variations in the number of individuals, sex ratio, age, genetic makeup www.notesolution.com Community Approach: interactions between populations, which both promote and limit the coexistence of species. Eg feeding relationship [movement of energy] Ecosystem Approach: organism and their activities in terms of energy and essential elements such as oxygen, carbon, nitrogen and so on. Deals with movements of energy, and how this effects climate and other physical factors Biosphere Approach: movements of air and water, and the energy and elements. For instance, ocean currents and wind carry heat and moisture that define climates, which in turn govern the distribution of organisms, composition of communities, and the productivity of ecosystems. Symbiosis- physical relationship between two different types of organisms When one provides another with something they lack, it is called mutualism. The opposite is parasitism,
More Less
Unlock Document


Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit