Home › SAT › Reading and Writing › reading_writing › Many animals, including humans, must sleep, and …
Many animals, including humans, must sleep, and sleep is known to have a role in everything from healing injuries to encoding information in long-term memory. But some scientists claim that, from an evolutionary standpoint, deep sleep for hours at a time leaves an animal so vulnerable that the known benefits of sleeping seem insufficient to explain why it became so widespread in the animal kingdom. These scientists therefore imply that _____ Which choice most logically completes the text?
Ait is more important to understand how widespread prolonged deep sleep is than to understand its function.
Bprolonged deep sleep is likely advantageous in ways that have yet to be discovered.
Cmany traits that provide significant benefits for an animal also likely pose risks to that animal.
Dmost traits perform functions that are hard to understand from an evolutionary standpoint.
Answer & Solution
Correct answer: B. prolonged deep sleep is likely advantageous in ways that have yet to be discovered.
Choice B is the best answer. The scientists' reasoning is that the KNOWN benefits do not justify the risk of deep sleep, so there must be undiscovered advantages that make sleep evolutionarily worthwhile.
Related questions
Store A sells raspberries for 5.50 dollars per pint and blackberries for 3.00 dollars per Rabinal Achi is a precolonial Maya dance drama performed annually in Rabinal, a town in thAccording to Naomi Nakayama of the University of Edinburgh, the reason seeds from a dying Iraqi artist Nazik Al-Malaika, celebrated as the first Arabic poet to write in free verse,While researching a topic, a student has taken the following notes:
- Maika'i Tubbs is a NText 1: What factors influence the abundance of species in a given ecological community? SSome studies have suggested that posture can influence cognition, but we should not overstThe work of molecular biophysicist Enrique M. De La Cruz is known for ______ traditional b