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Diversity in Living Organisms

Description: Diversity in Living Organisms (E)
Number of Questions: 20
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Tags: Diversity in Living Organisms (E) Physical and Life Science General Biology Biology CHSL (Combined Higher Secondary Level) Diversity in Living Organisms
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Which of the following is not a characteristic feature of amphibians?

  1. Presence of mucus glands in the skin

  2. Two pairs of limbs

  3. Four chambered heart

  4. Lungs for breathing


Correct Option: C
Explanation:

Three chambered heart is present in amphibians.

Which of the following is not a characteristic feature of class Mammalia?

  1. Possess mammary glands

  2. Presence of sweat and oil glands

  3. Presence of internal ear

  4. Separate sexes


Correct Option: C
Explanation:

External ears (pinna) are present in mammals.

Who gave the five kingdom classification of living organisms?

  1. Carl Linnaeus

  2. R. H. Whittaker

  3. George Mendel

  4. Robert Koch


Correct Option: B
Explanation:

In 1969, R. H. Whittaker suggested the five kingdom classification on the basis of various factors.

When did life originate on earth?

  1. 3.6 billion years ago

  2. 4.5 billion years ago

  3. 3.6 million years ago

  4. 4.5 million years ago


Correct Option: C
Explanation:

The earth originated during this time period.

Which of the following is not a 'single-celled' animal?

  1. Human being

  2. Amoeba

  3. Paramecium

  4. Trichonympha


Correct Option: A
Explanation:

Human being is a multicellular animal, who shows division of labour.

Merino is a species of

  1. fish

  2. cow

  3. sheep

  4. None of these


Correct Option: C

The species replacement that occurs over a very large geographical area is described as

  1. alpha diversity

  2. beta diversity

  3. gamma diversity

  4. point diversity


Correct Option: C
Explanation:

It is a measure of overall diversity for the different ecosystems within a large region.

________________ contains a record of the endangered species.

  1. Yellow Data Book

  2. Red Data Book

  3. Black Data Book

  4. None of these


Correct Option: B
Explanation:

It shows the record of species (all plants and animals) at the risk of extinction. The IUCN maintains this book to provide data on population status of species around the world.

The amphibians of plant kingdom are

  1. fungi

  2. gymnosperms

  3. bryophytes

  4. pteridophytes


Correct Option: C
Explanation:

Option 3 is correct.

Which of the following hierarchial categories is the topmost taxonomical category?

  1. Species

  2. Genus

  3. Class

  4. Kingdom


Correct Option: D

Contamination of well water could be assessed by the presence of

  1. lactobacillus

  2. coliform bacteria

  3. azotobacter

  4. rhizobium


Correct Option: B
Explanation:

The presence of fecal coliform in water may indicate that the water has been contaminated with fecal material of humans or other animals. Groundwater in a properly constructed well should be free of coliform bacteria. Fecal coliform bacteria can be found in wells through direct discharge of waste from mammals and birds, agricultural and human sources. This could also happen due to poor construction or cracks in the well or through runoffs from wooded areas, pastures, feedlots, septic tanks and sewage plants into streams or groundwater. Regular monitoring of the microbial quality of drinking water is an essential step in ensuring the safety of drinking water. Thus, Option 2 is correct.

Bacteria are

  1. prokaryotes

  2. eukaryotes

  3. non-cellular

  4. colonial


Correct Option: A

In which of the following living organisms is skin a necessary organ for respiration?

  1. Birds

  2. Rabbit

  3. Frogs

  4. None of these


Correct Option: C
Explanation:

The skin does not merely protect the frog but helps in respiration. Fine blood vessels run throughout the frog's skin; oxygen can pass through the membranous skin, thereby entering directly into the blood. When a frog submerges beneath the water, all its respiration takes place through the skin. Oxygen is obtained directly from the water.

Dodo bird is an example of

  1. endangered species

  2. endemic species

  3. extinct species

  4. migratory species


Correct Option: C
Explanation:

These species no longer exist on earth.

Snails, beetles, worms, jellyfish, octopuses etc. are animals without backbone. They are called as ____.

  1. insects

  2. reptiles

  3. vertebrates

  4. invertebrates


Correct Option: D

Murrah is a high yielding breed of

  1. goat

  2. cow

  3. buffalo

  4. pig


Correct Option: C

In termites, the cellouse of wood is digested by ________.

  1. protozoans

  2. bacteria

  3. protozoans and bacteria

  4. cellouse breaking enzyme B-amylase


Correct Option: A

Agar-agar is obtained from

  1. green algae

  2. red algae

  3. bacteria

  4. viruses


Correct Option: B
Explanation:

The gelling agent in agar-agar is an unbranched polysaccharide obtained from the cell walls of some species of red algae.

Bats and birds are both fliers but bat differs from bird in having

  1. four chambered heart

  2. wings

  3. small brain

  4. diaphragm


Correct Option: D
Explanation:

 Bats and birds are both fliers but bat differs from bird in having diaphragm

The richest source of fossils is _______.

  1. basalt

  2. granite

  3. lava

  4. magma


Correct Option: A
Explanation:

The richest source of fossils is sedimentary rocks.

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