kadamhari825
Until recently it was widely believed that only a limited number of species could reproduce parthenogensis, reproduction by female alone. But lately, as interest in the topic has increased, parthenogenesis has been found in variety of unexpected cases, including sharks and Komodo dragons. So number of species that can reproduce through parthenogenesis must be increasing.
The reasoning in the argument is most vulnerable to criticism on the grounds that the argument
(A) equates interest in a subject with real understanding of that subject
(B) takes for granted that because one thing follows another, the one must have been caused by other
(C) takes ignorance of occurrence of something as conclusive evidence that it did not occur
(D) overlooks a critical difference two situations that the argument presents as being similar
(E) presumes that because research is new it is, on that basis alone, better than older research
Context:Until recently it was widely believed that only a limited number of species could reproduce parthenogenesis, reproduction by female alone.
Premises: Lately, as interest in the topic has increased, parthenogenesis has been found in variety of unexpected cases, including sharks and Komodo dragons.
Conclusion: Number of species that can reproduce through parthenogenesis must be increasing.
Not the conclusion we were expecting, right? From the premises it seems that we were lacking knowledge because of insufficient exploration.
Let’s look at the options.
(A) Equates interest in a subject with real understanding of that subjectNo discussion about real understanding. It just talks about what has been found.
(B) Takes for granted that because one thing follows another, the one must have been caused by otherThere is no causation discussion
(C) Takes ignorance of occurrence of something as conclusive evidence that it did not occur Correct. Since there was limited interest before, it is likely that we were ignorant about how many species can actually reproduce parthenogenesis. This does not mean that the species were not reproducing parthenogenesis at that time. Now with interest increasing, our knowledge must have expanded and now we know.
(D) Overlooks a critical difference between two situations that the argument presents as being similarNo two situations discussed.
(E) Presumes that because research is new it is, on that basis alone, better than older researchThe argument presumes about the activity of the species, not whether the new or the old research is better.
Answer (C)Discussion on Flaw in Reasoning:
https://youtu.be/3s0tWn3tiT8