Bio Destroyer 2012 Q#43

[hope_to_match]

---

Members do not see this ad.

43. Darwinian fitness in a population can best be measured by which of the following?
a. How long a species can live
b. The speed an animal can run
c. The number of fertile offspring
d. The ability to survive hostile conditions
e. All of the above

The answer is C, but I am thinking how come E is not the correct choice? Think about it, all of the answer choices (A-D) give circumstances in which the specie is more adaptive to a particular environment. For example, I was thinking that anything that increases a species adaption to a particular environment is thereby making the specie more 'fit' in that environment and thereby the specie will produce more offspring. For example, if if for some reason a specie lives longer in a certain environment (than a different specie) that means that there was some adaptive trait that made it live longer than others in that environment. If an animal can run faster than a different animal, it will most likely be better at getting food/mating etc…and thereby will have more offspring than those that do not have adaptation. The ability to survive hostile environment also gives an advantage…

Can someone clarify this for me?

 

[Moka11]

While your right that all of those are traits that you'd find in a surviving animal. If Darwinism had to be "summed" up it wouldnt be how fast an animal can run, rather the number of fertile offspring.

 

[bpester]

43. Darwinian fitness in a population can best be measured by which of the following?
a. How long a species can live
b. The speed an animal can run
c. The number of fertile offspring
d. The ability to survive hostile conditions
e. All of the above

The answer is C, but I am thinking how come E is not the correct choice? Think about it, all of the answer choices (A-D) give circumstances in which the specie is more adaptive to a particular environment. For example, I was thinking that anything that increases a species adaption to a particular environment is thereby making the specie more 'fit' in that environment and thereby the specie will produce more offspring. For example, if if for some reason a specie lives longer in a certain environment (than a different specie) that means that there was some adaptive trait that made it live longer than others in that environment. If an animal can run faster than a different animal, it will most likely be better at getting food/mating etc…and thereby will have more offspring than those that do not have adaptation. The ability to survive hostile environment also gives an advantage…

Can someone clarify this for me?

Darwinian fitness is solely correlated to the number of viable offspring that a species produces. A species that lives a long time but produces no offspring will go extinct, thus has low fitness. Speed may or may not be a useful adaptation, but it isn't related to an organism's fitness. You wouldn't say that a turtle has lower fitness than a rabbit because it is slower. And choice D is similar to choice A. A species that can survive hostile conditions but produces no viable offspring will go extinct and thus has low fitness in that regard.

 

[themrn]

Darwin is a bit dumb. If you have 100 kids and they all survive, you are the most fitted no matter how ugly and poor they are.

no offense just to make you not to forget 🙂

 

[DrRoyal Pains]

👍

Darwin is a bit dumb. If you have 100 kids and they all survive, you are the most fitted no matter how ugly and poor they are.

no offense just to make you not to forget 🙂

 

[aznnytezx]

When is your DAT?