Wednesday, March 10, 2010
Monday, March 1, 2010
Talking rubbish...?
Line from an essay on modes of excretion in worms:
‘…and when you can’t taste anything, there is nothing entirely wrong with excreting waste through your mouth.’
‘…and when you can’t taste anything, there is nothing entirely wrong with excreting waste through your mouth.’
Wednesday, February 17, 2010
When in doubt, write something unbelievably dumb...
In a table on flower structure, a 2nd year university student wrote the following:
Q: Corolla [of flower]: Present/Absent
A: Yes
Q: Corolla [of flower]: Present/Absent
A: Yes
Sunday, February 14, 2010
Monday, November 16, 2009
Courtesy of Dr Anonymous
Explain, with the aid of a fully-labeled diagram, how changes in levels of a condition typically influence the function of organisms.
“Conditions was something that has influenced the functioning of organisms since decades. Long-ago, temperatures were low as compared to now…” [yeah OK, whatever man]
Distinguish between four types of predators classified according to their functional characteristics (i.e. not by the types of prey they eat), and give an example of each.
“Herbivores - those type of predators doesn't kill the prey but it eats it piece by piece (frequently) that might be the same species or different species. e.g. goats eating grass. True predators - predators that kill the prey doesn't affect it pieces by piece but just kills it one time. e.g. lion eating zebras” [eish! mebbe I fail this ONE TIME]
“Parasitoids: Feed of host, which they then kill for only a part of their life cycle” [and then spend the other part reviving it?]
Explain the differences between resource-weighted density, organism-weighted density, and exploitation pressure, and why ecologists find it useful to distinguish between these different expressions of density.
“It is quite useful…Each individual experience different factors due to its fitness, leading to darwins theory of natural selection”
“Conditions was something that has influenced the functioning of organisms since decades. Long-ago, temperatures were low as compared to now…” [yeah OK, whatever man]
Distinguish between four types of predators classified according to their functional characteristics (i.e. not by the types of prey they eat), and give an example of each.
“Herbivores - those type of predators doesn't kill the prey but it eats it piece by piece (frequently) that might be the same species or different species. e.g. goats eating grass. True predators - predators that kill the prey doesn't affect it pieces by piece but just kills it one time. e.g. lion eating zebras” [eish! mebbe I fail this ONE TIME]
“Parasitoids: Feed of host, which they then kill for only a part of their life cycle” [and then spend the other part reviving it?]
Explain the differences between resource-weighted density, organism-weighted density, and exploitation pressure, and why ecologists find it useful to distinguish between these different expressions of density.
“It is quite useful…Each individual experience different factors due to its fitness, leading to darwins theory of natural selection”
Wednesday, November 11, 2009
At least they eat light meals...
Q: Compare the dental formulae of humans and rats. What are the implications for the diets of both species?
A: It is evident that rats have no canines or premolars [because] rats do not tear flesh like humans do, because they do not have canines and premolars to assist them in doing so. Rats eat more lighter food as compared to humans.
A: It is evident that rats have no canines or premolars [because] rats do not tear flesh like humans do, because they do not have canines and premolars to assist them in doing so. Rats eat more lighter food as compared to humans.
Friday, November 6, 2009
Do you think they actually know what a rat is...?
Q: Compare the dental formulae of humans and rats. What are the implications for the diets of both species?
A: Only 2 carnivores per jaw on a rat and a diastema gab without teeth and 2 molars per side of a jaw. This suggests that rats have a limited diet (preferably meat) while human have a wide range of diets.
A: Only 2 carnivores per jaw on a rat and a diastema gab without teeth and 2 molars per side of a jaw. This suggests that rats have a limited diet (preferably meat) while human have a wide range of diets.
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