Mutualism
An interspecific relationship between members of different species where both benefit.
In the mutualistic relationship of pollination, name a benefit AND cost to the flower.
Benefit - gets pollinated.
Cost - has to produce nectar to attract pollinators - wasted energy.
Where do endoparasites live?
Inside a host.
Explain this relationship (i.e., name, costs, benefits)
Mutualism
Benefits: Flower gets pollinated, bee gets nectar.
Costs: Flower produces nectar only for pollinator attraction, bee expends energy in finding flowers.
How long has Mr Millar taught at Avonside?
4 years
Predation
An interspecific relationship between members of different species where one species benefits (predator) and the other does not (prey).
In the parasitism relationship of tapeworms, name a benefit AND cost to the tape worm.
Benefit: gets nutrients and safe environment.
Cost: if host dies, tapeworm dies as well.
Where do ectoparasites live?
Outside a host.
Explain this relationship (name, benefits, costs).
Mutualistic.
Benefits: Cow gets food digested, microbes get nutrients and safe place to live.
Costs: Loss of nutrients from cow to microbes, if cow dies, microbes also die.
How old is Mr Millar?
29
Parasitism
Include 2 main types.
An interspecific relationship between members of different species where one species benefits (parasite) and the other is harmed (host).
Includes endoparasites and ectoparasites.
In predation, explain the benefits AND cost to the predator. Explain the cost to the prey.
Predator:
Benefit = food for survival and reproduction.
Cost = energy in searching/hunting for food.
Prey:
Cost = death / harmed
What is the benefit to mimicry?
Helps species avoid predation.
Explain this relationship (name and benefits).
Mutualism.
Benefits: Clownfish gets protection and shelter. Anemone gets food from waste and predators scared off.
Who is the better teacher : Mr Millar or Mr Gracey
How dare you pick between them, they are clearly both amazing teachers...
Mr Gracey.
Commensalism
An interspecific relationship between members of different species where one species benefits and the other is not affected.
In the commensalistic relationship between remora (sucker fish) and sharks, name a cost AND benefit to the remora.
Benefit = gets a free ride, protection, food scraps.
Cost = if dislodged, may die.
What is a hemi-parasite?
Not a full parasite. Lives on another plant and takes nutrients from it. But can still photosynthesise.
Explain this relationship (name and benefits).
Mutualism.
Benefits: egrets get food from insects that are disturbed as elephant walks. Elephant gets warning about predators.
What month is Mr Millar birthday on?
December
Amensalism
An interspecific relationship between members of different species where one species is harmed and the other is not affected.
Explain the benefit to epiphytes (don't get confused with hemi-parasite).
Benefit = may have more access to light for photosynthesis. Avoids competition with plants on forest floor.
Only on another plant for physical support.
What is allelopathy?
Where plants secrete toxins that inhibit the growth and/or germination of other plants.
What is this? Why is it advantageous to non-toxic species?
Batesian mimicry.
Predators avoid non-venomous snake. Doesn't have to waste energy in producing toxins etc.
Mr Millar dog's name
Kida