Do Now. 1. Arctic foxes live in very cold climates. Which of the following is a biotic factor that may impact them? a) Cold temperatures b) Heavy snow c) Strong wind d) Number of lemmings (their prey )
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1. Arctic foxes live in very cold climates. Which of the following is a biotic factor that may impact them?
a) Cold temperatures
b) Heavy snow
c) Strong wind
d) Number of lemmings (their prey)
2. You discover a group of oxen and birds that live in the same area. This is an example of a(n)
d) biological community
3. Think about friendship. What are some benefits that you get from friendships?
Video 1: Giraffes & Oxpeckershttp://animal.discovery.com/tv-shows/animal-planet-presents/videos/top-10-odd-animal-couples-the-giraffes-oxpecker.htm
They have harmful ticks removed.
They get a free meal!
What are they?
When two different species live closely together
Three types of symbiosis:
What is it?
An interaction between two species that benefits both.
Example: Flowers and insects
The insects help
spread pollen to
make new plants.
The flowers give
the insects food
What is it?
An interaction between species that benefits one and does not harm the other.
Yay! I don’t mind!
The remora fish
and a shark
The remora fish suctions on to the shark for a free ride.
The shark doesn’t mind!
What is it?
One organism benefits but the other organism is harmed.
Mistletoe and Trees
Mistletoe is a plant that latches on to trees and steals food from them. The mistletoe benefits, but the tree is harmed.
Looking back at the video, what type of symbiotic relationship are the giraffe and the oxpecker in? Explain.
Mutualism, because BOTH organisms benefit!
Predation is when a predator seeks out and eats another organism (called a prey)
Don’t get confused with parasitism
Video 2: The tongue-bitershttp://animal.discovery.com/tv-shows/animal-planet-presents/videos/top-10-odd-animal-couples-the-giraffes-oxpecker.htm
Parasitism, because one organism (the tongue-biter) benefits, while the other is harmed
Mutualism, because you both benefit!
With your group, go to each station and decide what type of symbiotic relationship exists in each situation
You have 90 seconds to decide!