Post Reply 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Share Topic: GooglePlus Facebook Twitter
MyElimu Offline

Posts: 198
Thanks Given: 7
Thanks Received: 90 in 57 posts
Joined: Feb 2014
Reputation: 1

Country: Tanzania
Post: #1


Ecology is the study of the relationships between living organisms and the natural environment

Consists of
  • biotic: concerning living things which an organism comes into contact with
  • abiotic: includes light, water, oxygen, temperature, salinity and pH of water or soil
Some terms
  • Habitat: a place where an organism lives
  • Population: a group of individuals of the same species
  • Niche: the role played or position occupied by an organism in the habitat
  • Community: consists of populations of plants and animals living together and interacting with one another under the same environmental conditions
  • Producers: green plants that can manufacture food materials by photosynthesis
  • Consumers: obtain their energy from the organisms on which they feed
  • Decomposers: break down organic matter, feeding on some of the remains and releasing the rest
Food chain and Food web
  • Food chain
    • a series of organisms through which energy is transferred in material form constitutes a food chain
    • A food chain is usually short because of the loss of much energy to the environment at each level
  • A food web consists of two or more food chains interlinked together
Carbon cycle
  • The carbon cycle consists of processes by which carbon dioxide is removed and restored to the atmosphere
[Image: carboncycle.jpg?height=320&width=320]

  • Parasitism is an association between 2 organisms such that one organism (the parasite) lives on or in the body of another organism (the host)
  • The parasite usually does some harm to its host
  • The malaria parasite requires 2 hosts (man and anopheles mosquito) to complete its life cycle
  • It is transmitted from an infected person to a healthy person by the female Anopheles mosquito (the vector)

If there is something to add, please add and let's discuss!
(This post was last modified: 02-26-2014 07:09 PM by MyElimu.)
02-26-2014 07:08 PM
Visit this user's website Find all posts by this user Add Thank You Quote this message in a reply
Post Reply 

Quick Reply
Type your reply to this message here.

Disable AutoMedia embedding for this link.   AutoMedia MP3 Playlist

Image Verification
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

User(s) browsing this thread: 1 Guest(s)
@MyElimu @MyElimu @MyElimu