Complete GATE XH-C5 2022 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 9 of 22

Question 25

Open question
XH-B1MSQ2 marksNeeds review
Shark’s teeth have evolved to correspond to the diet of each particular species of shark. Consequently, the teeth of the great white shark bear little resemblance to those of the bull shark or nurse shark. There were essentially four different shark diets and thus four varieties of shark teeth. Sharks that feed on fish have needle like teeth, perfect for spear and rip. Sharks that eat mammals such as seals and sea lions have heavy, serrated teeth, typically triangular on the upper jaw and pointed on the lower jaw. Shark that feed in the benthic zone of the ocean have flattened teeth for crushing the shell of the creatures they find scuttling in the sand or cling to rocks. Sharks that bask have teeth that are largely non-functional; these sharks filter food from the water by passing it through their gills.
Which of the following is/are the CORRECT inference(s) as per the page?
Your answerSelect all correct options. You can choose more than one.

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Question 26

Open question
XH-B1NAT2 marksNeeds review
A particular school management wants to contact all parents, all businessmen and all engineers. The following statistics are available with the school.
Businessmen = 50
Engineers = 25
Parents = 250
Businessmen who are engineers = 0
Businessmen who are parents = 25
Engineers who are parents = 15
The number of people needs to be contacted are ________ .

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Question 27

Open question
XH-C5MCQ1 markNeeds review
The construct validity of a test is assesed through ________________.
Your answerChoose one option.

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