BIOLOGY 1 | Study Mode

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Question 111

For effective functioning of a bird's quill feather, hooks fit on the ridge of the

Vane

rachis

barbules

barbs

Explanation

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Correct option: C

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Question 112

Which of the following pairs are fully adapted to terrestrial life?

Ferns and algae

Ferns and mosses

Bryophytes and flowering plants

Flowering plants and conifers

Explanation

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Correct option: D

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Question 113

Which of the following food chains is in the correct sequence?

Weeds Tadpole Beetles Fish Man

Weeds Tadpole Fish Beetles Man

Tadpole Beetles Weeds Man Fish

Man Fish Beetles Tadpole Weeds

Explanation

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Correct option: A

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Question 114

The function of lymph nodes is to

supply oxygen

filter out bacteria

form red blood cells

supply amino acids

Explanation

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Correct option: B

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Question 115

At what stage in the life history of a toad is its mode of breathing similar to that of fish?

Tadpole stage

Adult stage

Internal gill stage

Larval stage

Explanation

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Correct option: A

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Question 116

In fish the sense organs which detect movements in water are located within the

gills

operculum

nostrils

lateral line

Explanation

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Correct option: D

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Question 117

Each of the following is an anthropod EXCEPT the

crab

spider

snail

milipede

Explanation

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Correct option: C

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Question 118

Green plants are important in the ecosystem because they are

primary consumers

producers

decomposers

secondary consumers

Explanation

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Correct option: B

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Question 119

The presence of a diastema in the jaw bone indicates that the mammal lacks the teeth suitable for

tearing

chewing

cutting

cutting and grinding

Explanation

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Correct option: A

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Question 120

The transect method can be used in ecology to show the

Number of plants and animals in a habitat

Population of a particular plant species

Distribution of organisms along a line

Heights of trees in section of a forest

Explanation

C. The transect method involves placing a line or tape across a habitat and observing the distribution of organisms along that line. This can provide information on the density and distribution of different species in the habitat. Therefore, option C is the correct answer. Options A, B, and D are not accurate descriptions of the transect method.

Correct option: C

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