Posted on 18 September 2012. Tags: abiotic factors, autotroph, biotic factors, Community, Cycling, ecosystem, grass, heterotroph, keystone species, life functions, maple trees, primary succession, succession, trophic level, trophic levels
1. Which of the following are biotic factors and which are abiotic factors? (1 point)
Rain and grass are biotic; wind and humidity are abiotic.
Algae and fungi are biotic; temperature and rainfall are abiotic.
Oxygen and sunlight are biotic; maple trees and spiders are abiotic.
Fish and whales are biotic; plankton and bacteria are abiotic.
2. Why is it useful for an ecologist to identify the keystone species in an ecosystem? (1 point)
The keystone species is only important in early stages of succession, and so the ecologist can safely ignore changes in its population at later stages.
The keystone species is the most susceptible to pollution, and so its numbers give an indication of the levels of pollutants in an area.
The keystone species is critical to maintaining the stability of an ecosystem, and changes in its population indicate changes in ecosystem health.
The keystone species is important for the cycling of matter and must be maintained or the biogeochemical cycles will be affected.
3. Competition over resources occurs between organisms (1 point)
participating in an herbivorous relationship.
forming a symbiotic relationship.
attempting to occupy the same niche.
initiating primary succession after a disturbance.
4. The lowest trophic level in an ecosystem (1 point)
has the lowest quantity of stored energy.
has the greatest biomass.
is made up of heterotrophs.
contains detritovores.
5. What is true of the energy that is passed from one trophic level to the next in a food chain? (1 point)
About 10% of the energy passed from one level to the next is released as heat.
About 10% of the stored energy of one level becomes stored energy at the next higher level.
The energy at each level increases by about 10% with each move up in trophic level.
The total energy at all trophic levels is constant, but only about 10% is available for use by organisms for life functions.
6. Autotroph is to producer as heterotroph is (1 point)
herbivore.
consumer.
decomposer.
carnivore.
7. Which of the following is true of population cycles? (1 point)
Population cycles signal an imbalance in an ecosystem.
Keystone species are necessary to establish population cycles.
A new species introduced to an ecosystem tends to stabilize population cycles in the ecosystem.
Population cycling helps maintain a healthy ecosystem.
8. An example of a pioneer species is (1 point)
a sparrow.
a lichen.
an earthworm.
a spider.
9. Why are human disturbances often of more concern than natural disturbances? (1 point)
Human disturbances last much longer than natural disturbances so that a damaged ecosystem may have little or no chance of recovery.
Human disturbances are stronger than natural disturbances and so the recovery needed is much greater.
Human disturbances often cover much wider areas than natural disturbances, which means that more ecosystems are affected.
Human disturbances affect all types of ecosystems, whereas natural disturbances are limited to certain types of ecosystems.
10. Suppose a particular community is concerned about a fox population that kills and eats chickens on the local farms. What is the best course of action by this community? (1 point)
Kill the foxes.
Trap and transport the foxes out of the region.
Introduce rabbits as an alternative source of food for the foxes.
Build enclosures for the chickens that the foxes cannot access.
Posted in Affiliate Marketing 101
Posted on 17 August 2012. Tags: additional tools, Code, creating groups, Cycling, cycling clubs, cyclists, Facebook, idea, information, new friends, niche market, privacy concerns, social networks, time sports
I’ve come up with the idea of creating a social network, with the niche market being cyclists.
The idea being not to pull people away from existing social networks such as Facebook but still providing additional tools that your basic forums don’t cover.
I am hoping to get some views before I begin writing any code, as there isn’t much point if it isn’t going to get a good reception from the end user.
The social network shall have your standard, underlying features such as the ability to connect with existing and new friends who share a similar interest in cycling, whether it be your average commute or a full time sports interest.
You shall then have additional tools such as the ability to share routes you have done, rate routes that others have posted (enjoyment, difficulty etc.) and keep track of your progress such as miles and performance.
Other potential features include the possibility of creating groups (such as local cycling clubs) and events which you can share with your friends or make them public and invite other members of the community along.
There would obviously be privacy concerns, which is why no Personally Identifiable Information would be collected however this shouldn’t impede the service as you will still be able to share the content.
What do you think, does it have potential? I was thinking that students could play a big part in the market, especially with commutes which you may make.
Thanks for any feedback, not too much information… just in case 😛
Posted in Affiliate Marketing 101
Posted on 14 August 2012. Tags: best bet, Cycling, ive got a feeling, mega store, niche, olympic park, Olympics, park, Shop, store, suits, Ticket
i want to buy one of the cycling suits that they wore in the olympics and ive got a feeling as it may be pretty niche that going to the olympic park mega store is my best bet of grabbing one. do i need a ticket to get into the olympic park to go the the shop
Posted in Affiliate Marketing 101
Posted on 08 August 2012. Tags: amp, bike, Cleat, cleats, clothing shoes, Compatability, Cycling, Help, pd, road bike, Shoe, uk thanks, utm, wiggle
I just bought my first road bike and ordered pedals and shoes for it but realised there are different cleat compatability between shoes and the cleats, as a complete noobie i was wondering if my shoes:
http://www.bikeradar.com/gear/category/clothing/shoes/product/review-shimano-r077-shoes-11-44429
are compatable with the cleats and pedals:
http://www.wiggle.co.uk/shimano-pd-r540-spd-sl-sport-pedals/?referid=affwin&utm_source=affiliate-window&utm_medium=affiliates&utm_campaign=spdpedals.co.uk
thanks for your help, thought i should ask people in the know before the order gets dispatched.
Posted in Featured Articles
Posted on 10 August 2010. Tags: August, Cycling, Deals, Favourite, hot deals, Magazines, Plus, popular sports
simple!
August Summer Sale
This month we are celebrating the summer with some fantastic offers. We are offering your customers savings of up to 40% on our popular Sports titles. These include:
Cycling Plus
Posted in Affiliate Marketing 101