According to the passage, theory B states which of the following as a factor that enables a schooling fish to escape predators?

The tendency of fish to form compact groups

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The movement of other fish within the school

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The inability of predators to detect schools

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The ability of fish to hide behind one another in a school

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The great speed with which a school can disperse

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D The movement of other fish within the school
Option B is the right answer because towards the end of the second paragraph in the passage it is is clearly mentioned that - 'Even if the predator makes the decision to attack a particular fish, the movement of other prey in the school can be distracting.'
There is no evidence in the passage to suggest that Options A, C, D, and E are the right answers.
Hence, these are incorrect.

Suggest Corrections

Similar questions

Read the following passage and answer the question that follows.

Until recently, many biologists believed that invertebrate “schools” were actually transient assemblages, brought together by wind, currents, waves, or common food sources. Jellyfish groupings, for example, cannot be described as schools—cohesive social units whose members are evenly spaced and face the same way. However, recent research has found numerous cases in which crustaceans and other invertebrates form schools as fish do. Schooling crustaceans such as krill regularly collect in such massive numbers that they provide abundant food for fish, seabirds, and whales. Like schooling fish, invertebrates with sufficient mobility to school will swim in positions that are consistent relative to fellow school members, and are neither directly above nor directly below a neighbor. The internal structure of such a school changes little with external physical disruption but dramatically with the advent of a predator. Since schooling is an active behavior, researchers assume that it must bring important benefits. True, schooling would appear to make animals more visible and attractive to predators. However, schooling leaves vast tracts of empty water, thereby reducing a predator’s chances of picking up the school’s trail. A large group maintains surveillance better than an individual can, and may discourage predation by appearing to be one massive animal.

According to the passage, what are the advantages of schooling for invertebrates?

Q. According to one explanation of the "confusion effect," a fish that swims in a school will have greater advantages for survival if it ________.

Q. Suppose a fish is swimming upstream in total darkness. Which of the following would be most likely to help the fish sense aquatic predators that approach it from behind?

Q. Which of the following abiotic factors enable the fish to survive in a pond?

Q. Which of the following features enables fish to move easily in water?

Join BYJU'S Learning Program