New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Week One Notes (BIOL1104K)

by: NemeNdolo

Week One Notes (BIOL1104K) BIOL 1104K

Marketplace > Georgia State University > Biology > BIOL 1104K > Week One Notes BIOL1104K
GPA 3.2
View Full Document for 0 Karma

View Full Document


Unlock These Notes for FREE

Enter your email below and we will instantly email you these Notes for Introductory Biology II (BIOL 1104K)

(Limited time offer)

Unlock Notes

Already have a StudySoup account? Login here

Unlock FREE Class Notes

Enter your email below to receive Introductory Biology II (BIOL 1104K) notes

Everyone needs better class notes. Enter your email and we will send you notes for this class for free.

Unlock FREE notes

About this Document

Notes from week one of Chapman's class.
Introductory Biology II (BIOL 1104K)
Class Notes
Biology 1104K, BIOL1104K, Biology, Biology 2, Ecology, Bio




Popular in Introductory Biology II (BIOL 1104K)

Popular in Biology

This 3 page Class Notes was uploaded by NemeNdolo on Friday January 8, 2016. The Class Notes belongs to BIOL 1104K at Georgia State University taught by Chapman in Spring 2016. Since its upload, it has received 129 views. For similar materials see Introductory Biology II (BIOL 1104K) in Biology at Georgia State University.


Reviews for Week One Notes (BIOL1104K)


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 01/08/16
BIOL1104K NOTES (Week One)    CH 1: ​Ecology & The Distribution of life    WHAT IS ECOLOGY  ­ The study of organisms interacting with each other and their environment.  ­ Environments are comprised from biotic and abiotic elements.     ECOLOGICAL HIERARCHY  ­ Organism  ­ Population  ­ Community  ­ Ecosystem  ­ Biosphere    WHY IS ECOLOGY IMPORTANT?  ­ The fascinating interactions among species enrich our lives and make us curious.  ­ Ecological science is needed to solve many problems.  ­ Ecology gives us an insight into diseases and their possible treatments.    ENERGY FLOWS & NUTRIENT CYCLE  ­ Energy flows and the nutrients cycle are the pathways of energy and nutrients.  ­ Sadly, energy flow is inefficient ​(poor energy flow…).     WHERE THE FUCK DOES ENERGY COME FROM?  ­ The sun (It's captured by autotrophs and photosynthetic feeders).  ­ Energy enters communities through trophic levels. Unfortunately, this is inefficient.    ENERGY ENTRY (through photosynthesis)  ­ Autotrophs/producers (Most autotrophs are photosynthetic organisms, that get their shit­  energy­​  from the sun. NOTE: some bacteria can obtain their energy from other sources  too).   ­ Heterotrophs/consumers.  ­ Energy level flows from producers to consumers.   ­ All primary consumers (producers/autotrophs) are herbivores.  ­ The secondary consumers (consumers/heterotrophs) are carnivores.  ­ Producers (1st)  to Primary Consumers (2nd) to Secondary Consumers (3rd) to Tertiary  Consumers (4th).  ­ Net primary productivity is the available energy to give the next trophic level. This can be  measured as biomass (weight of organisms) or as energy. This determines how many  trophic levels/organisms can be supported.  ­ NPP: Sunlight, Water, & Soil Nutrients.    ENERGY FLOW: Primary Productivity  ­ Different ecosystems have different levels of productivity.  ­ Food web shows complex interactions that happen in nature.    DETRITUS FEEDERS & DECOMPOSERS  ­ Such organisms help to recycle energy.  ­ Examples of these are worms, crabs, maggots    ENERGY PYRAMIDS  ­ These illustrate the energy transfer between trophic levels.  ­ Goes from 1000 to 100 to 10 to 1 (typically 10% will transfer to the next trophic level).  ­ PRACTICAL APPLICATION: The best way to feed a starving village would be for the  people to feed from organisms on the 2nd trophic level.    COMMUNITY INTERACTIONS  ­ Commensalism= Positive for one, negative for the other.  ­ Amensalism= Negative for one, zero effect on the other.  ­ Competition= Negative for both parties.  ­ Predation= Negative for one party and positive for the predator’s party.  ­ Mutualism= Positive effect on both parties.  ­ Parasitism= Negative effect on one party, positive effect for the parasite    ENERGY FLOW: BIOACCUMULATION  ­ Bioaccumulation is an unfortunate side effect of the inefficiency of energy transfer.  ­ Toxic substances accumulate at increasingly high concentrations in progressively higher  trophic levels.   ­ Pesticides and other pollutants are especially problematic if they are not biodegradable  or water soluble (these normally accumulate in the fat of the organisms rather than being  broken down or excreted).    EVOLUTIONARY THOUGHT  ­ Evolution by natural selection is a unifying theme for all biology.  ­ When did the main ideas of evolution begin to be accepted?    PRE­DARWIN PROPOSAL  ­ Jean Baptiste Lamarck (1744­1829) Proposed that organisms evolved through  inheritance of acquired characteristics.  ­ Organisms are modified during their lifetime through use or disuse of different parts.  ­ These modifications are passed to offspring.  ­ What would that mean­why was he wrong?  ­ Why would her have thought that in the first place?      NATURAL SELECTION RULES  ­ Must be heritable  ­ There must be variety  ­ There must be selection pressure  ­ There must be a trait that leads to a winner.  ­ “The process of descent”: When natural selection happens, the alleles that survived will  become so prevalent that the phenotypic traits of the generations will start to look  different to represent the allele change.   


Buy Material

Are you sure you want to buy this material for

0 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Allison Fischer University of Alabama

"I signed up to be an Elite Notetaker with 2 of my sorority sisters this semester. We just posted our notes weekly and were each making over $600 per month. I LOVE StudySoup!"

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.