winterschool wrote:
Q1. Animals eat a wide variety of food, sometimes taking a relatively large amount of time in handling the prey, an activity that includes capturing, killing, eating and digesting the food, and sometimes a relatively short amount of time. Probably, the reason behind such behavior is that animals make feeding choices based on the goal to maximize their net energy intake per unit time, leaving them with more time and energy for other important activities such as finding a mate or caring for an offspring; for instance, __________________________ Which of the following, if true, most logically completes the above argument? (A) some species of insects are ultimate feeding specialists, feeding only on a single plant species, whereas certain animals such as the opossum eat everything from insects and berries to garbage (B) using their biological reaction to a certain food item as a guide, some animals sometimes make the decision to avoid a particular prey altogether. (C) animals spend more time on handling food items that provide more kilocalories, and less on food that provides relatively fewer kilocalories. (D) under the risk of predation, animals sometimes select such preys that may not be their first choice but that are safer to consume as these preys lie in relatively predator free regions. (E) the foraging behavior of animals is determined by the phenomenon of natural selection in which certain biological traits become either more or less common as a species goes through the process of evolution.
winterschool wrote:
Q2. Loneliness is commonly reported in elderly populations. A study of elderly people found that those who owned dogs reported feeling less lonely than those who did not own dogs. Clearly, an elderly person who adopts a pet will be less likely to suffer feelings of loneliness than an elderly person without a pet. Which of the following, if true, would most strengthen the argument above? (A) Owning a pet has been linked to several health benefits, including lower blood pressure. (B) Some people feel that cats do not engage socially with their owners as much as dogs do. (C) The number of elderly people who own pets is projected to rise in the coming years. (D) A large percentage of elderly dog owners report taking their dogs for walks and to dog parks. (E) Pets other than dogs provide the same benefits of companionship as do dogs. Difficulty - Hard
CR Questions May - 29 :Q1. Between around 664BC and 250AD, it was common practice in ancient Egypt to offer the ibis birds as sacrifice to the god Thoth, and subsequently mummify them. In ancient sites across Egypt, these mummified birds are stacked floor to ceiling along kilometers of catacombs, totaling many millions of birds. However, how the Egyptians got access to so many birds has been a mystery; some ancient texts indicate that long-term farming and domestication may have been employed.
Which of the following, if true, most strongly suggests that the ancient texts may have been right after all?
A. Recent studies found that the genetic diversity of mummified Ibises within and between catacombs was similar to that of modern wild populations.
B. Dating back to 3000 years ago, paintings of the sacred ibises being offered as sacrifice have been found in many caves scattered across what was ancient Egypt.
C. Animal husbandry was one of the primary occupations of the ancient Egyptians between 650 BC and 200 AD.
D. Studies of DNA collected from 40 mummified Ibis specimens dating to 2500 years ago found the genetic diversity to be low, indicating interbreeding of restricted populations.
E. From studies on ancient fossils dated 4000 years ago, scientists have identified that many species of birds bred significantly more slowly in captivity than in the wild.
Difficulty - Hard
Q2. The social behavior of rats is said to parallel, in certain ways, that of humans. A study has found that laboratory rats placed in crowded colonies for long periods of time are more likely to engage in fighting and other anti-social behavior than are rats who spend only brief interludes in crowded colonies.
The research described above would be most useful in addressing which of the following questions?
A. Are industrial workers in large factories more productive if flexible scheduling makes their schedules less routine?
B. Does urban housing designed to minimize population density lead to lower crime rates in the immediately surrounding areas?
C. How effective is the threat of solitary confinement in deterring fighting in prisons?
D. Do genetic factors contribute to anti-social behavior?
E. Do larger classrooms and smaller classes favorably affect the rate at which students learn?
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29 May 2023, 04:20
