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Biology 3-1, 3-2 Intro to Ecology

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Kathryn Cameron

on 24 March 2013

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Transcript of Biology 3-1, 3-2 Intro to Ecology

http://suedafrika.net/bluegifs/twooryx.jpg SPECIES Organisms so similar to one another that they can breed and produce fertile offspring = _____________ Levels of Organization Energy Flow in the Biosphere,
Chapter 3-1 & 3-2 ALL LIVING THINGS USE ENERGY PHOTOSYNTHESIS BIOLOGY; MIller and Levine; Prentice Hall; 2006 AUTOTROPHS = PRODUCERS
Can make their own food Most autotrophs use _______________
to capture solar energy

Main producers on land
= green plants

In water = algae abiotic
_____________
= place it lives PLUS the
_____________ & ___abiotic___________
interactions it has in that place

NICHE includes: Where it lives PLUS . . .
What it eats? What eats it?
Where in the habitat it lives? In a tree, in a pond, underground
Its actions… hibernating, migrating, etc When & how it reproduces? biotic NICHE REPRODUCTION Family image from: http://babyhearing.org/Parenet2Parent/index.asp Growth and
Development HEAT http://home.insightbb.com/~g.mager/Pond/Ecosystem.htll Some energy is used
for life processes
such as growth,
development,
movement,
metabolism,
transport, and
reproduction.

The rest is
lost as ________ FIRST PRODUCERS TROPHIC LEVEL http://home.insightbb.com/~g.mager/Pond/Ecosystem.htll Each step in a food chain or web =
_______________

______________
ALWAYS
make up the
________
trophic level. Pearson Education Inc, Publishing as Pearson Prentice Hall FOOD WEB A ______________ links ALL the food chains in an ecosystem together. In most ecosystems feeding relationships are more complex DECOMPOSERS DETRITIVORES http://montereybayphotos.com/images/nature/2.jpg
http://www.fwnp.com/bracket-fungi.htm ________________ =
feed on plant & animal remains
EX: mites, earthworms,
snails, crabs

________________ =
break down and absorb organic matter
EX: bacteria & fungi HETEROTROPHS = CONSUMERS CONSUMERS http://www.epa.gov/region5/superfund/ecology/images/fishcartoon.gif HETEROTROPHS = ____________
Get energy from consuming other organisms CHEMOSYNTHESIS INORGANIC MOLECULES absence of light chemical bonds BIOLOGY; MIller and Levine; Prentice Hall; 2006 Some autotrophs can make own food in the

____________________

They use energy stored in

________________ of

______________________to produce

carbohydrates = ___________________

Ex: Bacteria that
live in HOSTILE places
Like volcano vents, hot springs,
marshes Competitive exclusion principle = ______________________________ BIOLOGY; Miller and Levine; Prentice Hall; 2006 NO TWO SPECIES CAN
SHARE THE SAME NICHE ! http://animals.timduru.org/dirlist/snake/animalwild089-RattleSnake-FaceCloseup.jpg http://www.rvstogophx.com/images/arizona_desert_sm.jpg
__________________
= The area where an organism lives


A rattlesnake lives in a desert in the American Southwest HABITAT Extends from about
8 km above the Earth’s surface
to 11 km below the ocean’s surface http://jaeger.earthsci.unimelb.edu.au/Images/Topographic/Whole_Earth/Earth_100.jpg The scientific study of interactions of organisms with each other and with their environment = ______________

The portion of the planet in which all life exists = _________________
(includes land, water, atmosphere) BIOSPHERE ECOLOGY 10% http://home.insightbb.com/~g.mager/Pond/Ecosystem.htll Lower levels must be
bigger to support the
level above.

Only about_____ of
the energy from
each level is passed
on. ALL LIVING THINGS USE ENERGY SUNLIGHT http://www.animation-station.com/smileys/index.php?page=17 _____________ is the main source of energy for life on Earth. The Earth is SOLAR POWERED! Images from: Pearson Education Inc; Publishing as Pearson Prentice Hall __________________
All the living things an
organism interacts with


__________________
All the non-living things that
affect an organism

Ex: climate, temperature, sunlight
soil, humidity, wind ABIOTIC FACTORS BIOTIC FACTORS WHAT SHAPES AN ECOSYSTEM? LEVELS OF ORGANIZATION FROM
Smallest to largest DIFFERENT
POPULATIONS
LIVING TOGETHER
IN AN AREA SAME SPECIES LIVING TOGETHER
IN AN AREA

Ex: “herd” BIOLOGY; Miller and Levine; Prentice Hall;2006 COMMUNITY POPULATIONS ORGANISMS ___________________________________ FOOD CHAIN ↑ ↑ CONSUMERS (Heterotrophs) PRODUCERS (Autotrophs) http://fig.cox.miami.edu/Faculty/Dana/foodchain.jpg ________________

_________________


= _________________ Energy flows through an ecosystem in a series of steps in which organisms transfer energy by being eaten OMNIVORES CARNIVORES HERBIVORES http://gallery.hd.org/_exhibits/natural-science/_more2003/_more09/elephant-eating-greenery-in-Addo-Park-Eastern-Cape-South-Africa-2-WL.jpg
http://personal.ecu.edu/wuenschk/rabbit-wolf.gif
http://www.rodsguide.com/bears/eating.jpg ________________ =
eat only plants

________________ =
eat only animals


________________ =
eat both plants & animals HETEROTROPHS = CONSUMERS http://www.electricwomen.com/hunterspoint/images/21-street-sign-moreell.jpg http://resmedicinae.sourceforge.net/logos/doctor.png
http://www.michcampgrounds.com/yogibears/yogi-picnic-cartoon.jpg
http://www.formaui.org/kamalii/critters.htm Habitat is like an
organism’s ____________

Niche is like an
organism’s ______________ OCCUPATION address HABITAT vs NICHE? Horses and donkeys are different species.

If you breed them, the result is a mule
which can NOT have offspring! http://environnement.ecoles.free.fr/Site-chevaux/images/etalon_quarter_horse_genuine_redskin.jpg
http://www.caribbeanart.com/art/j-portrait-donkey.jpg
http://en.wikipedia.org/wiki/Mule 63 chromosomes 62 chromosomes 64 chromosomes EX: Horse X donkey = mule LEVELS OF ORGANIZATION FROM
Smallest to largest The portion of the planet
in which all life exists BIOSPHERE Group of ecosystems
that have same climate
and similar communities All the organisms that
live in a place together
with their NON-living
environment IMAGE SOURCES: see last slide BIOMES ECOSYSTEMS _______________________ _____________ LEVELS OF ORGANIZATION FROM Smallest to largest Similar cells working together IMAGE SOURCES: see last slide TISSUES CELLS ____________  ____________  Meiosis: http://www.tokyo-med.ac.jp/genet/anm/
Cilia: http://www.sk.lung.ca/content.cfm?edit_realword=hwbreathe
Replication: http://www.beyondbooks.com/lif71/4c.asp
Transcription:http://www.wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/mRNA.gif
Translation: Movement

Synthesis of biomolecules WHAT DO CELLS USE ENERGY FOR ? LEVELS OF ORGANIZATION FROM Smallest to largest Different organs working together Different tissues working together IMAGE SOURCES: see last slide ORGANISM ORGAN SYSTEMS ORGANS ___________  __________ ___________ LEVELS OF ORGANIZATION FROM Smallest to largest IMAGE SOURCES: see last slide ORGANELLES MOLECULES ATOMS ________ __________  ___________
Full transcript