Tag: biodiversity and classification

Questions Related to biodiversity and classification

Maximum diversity is seen amongst

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. Monera

  2. Animalia

  3. Plantae

  4. Protista

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Correct Option: B
Explanation:

Animals are multicellular eukaryotes that form the kingdom Animalia. They occupy a variety of habitats and are found all across the world. It has been estimated that there are around 7 million animal species in the world out of which, 1.5 million have been discovered so far and are being studied. Out of these 1.5 million living animals, 1 million are insects. 

So, the correct answer is 'Animalia'.

The kingdom Animalia includes which of the following peculiar characteristics?

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. Chambered heart

  2. Oviparous and Viviparous

  3. Coelomate

  4. All of the above

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Correct Option: D
Explanation:

The organisms placed in the kingdom Animalia are multicellular, eukaryotic organisms which exhibit certain features. These organisms have a heart which is divided into different chambers. The contraction and relaxation of these chambers help in the circulation of the blood. The animals are oviparous which lay eggs and there are some animals which give birth to the young ones. These animals are coelomate as there is a gastrovascular cavity in the animals. 

Thus, the correct answer is option D. 

Which of the following statement is the true description about an animal concerned?

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. Cockroach has 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen).

  2. The alimentary canal in earthworm consists of pharynx.

  3. The body of frog is divisible into head, neck and trunk.

  4. Both A and B

Show answer
Correct Option: D
Explanation:

  •  A cockroach has 10 pairs of spiracles on its body, out of which, two are present on its thorax and the rest are present on its abdomen.
  • The alimentary canal of Pheretima consists of pharynx among other organs.
  • The body of the frog is divisible into head and trunk.
So, The correct answer is 'Both A and B'.

Kingdom Animalia are classified into

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. Phylum Porifera

  2. Phylum Arthropoda

  3. Phylum Chordata

  4. All of the above

Show answer
Correct Option: D
Explanation:

Kingdom Animalia is classified into 36 phyla on the basis of similarity and dissimilarity. Phyla are further divided into the class.
Phylum Porifera belongs to the animal kingdom which has the cellular level of organization.
Phylum of the animal kingdom which has tissue level of organization are Arthropoda, Platyhelminthes, Nematoda, Cnidaria, Annelida, Echinodermata, Mollusca and Chordata.
Thus, the correct answer is option D.

An organisms lacks complete digestive tract is

I. Jellyfish
II. Mollusk
III. Earthworm

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. I, II and III

  2. I only

  3. II only

  4. III only

  5. I and III only

Show answer
Correct Option: B
Explanation:

Jellyfish have an incomplete digestive system as the same orifice is used for both food intake and waste expulsion. Mollusk and earthworm have a complete digestive system with distinct openings for food intake and waste expulsion. 

Therefore, the correct answer is option B.

Amniotic membranes are formed in
I. Amphibians
II. Birds
III. Mammals
IV. Reptiles

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. I, II and IV

  2. II and III

  3. II, III and IV

  4. I and IV

  5. IV only

Show answer
Correct Option: C
Explanation:

Amniotic membrane is the innermost layer of the placenta consisting of a thick basement membrane and an avascular stromal matrix. This is a thin tough and transparent  pair of membranes that form a sac in which the fetus of tetrapods vertebrates such as reptiles, birds and mammals develop. Thus, the correct answer is option C.

The statements given in the box describe an animal. Identify the animal.

$\bullet$ It is a carnivore.
$\bullet$ It lives in a forest.
$\bullet$ It is being wiped out by poachers killing them for their skin, bones, nails and teeth.
biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. Chinkara

  2. Black buck

  3. Tiger

  4. Chiru

Show answer
Correct Option: C
Explanation:

Tiger is a carnivore animal which feeds on the flesh of the other organisms. This animal is commonly found in the forests. Due to the activity of the poachers and hunters, the number of these animals have been greatly reduced. The animals are hunted for the skin, bones, teeth and nails. The project tiger was initiated to protect the tigers.

Thus, the correct answer is option C. 

The total number of species included in the animal kingdom are about

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. 2 million

  2. 3 million

  3. 10 million

  4. 1 billion

Show answer
Correct Option: C
Explanation:

Kingdom Animalia consists of organisms that range from the simplest of the animal forms to the most complex. 
Currently 1.7 million living organisms are known to science. Out of these 1.2 million are animals and about 0.5 millions.

Hence the correct answer is option D. 

ORGANISM Jaws Lungs Amniotic Membrane Hair No tail Bipedal
Lamprey 0 0 0 0 0 0
Shark 1 0 0 0 0 0
Salamander 1 1 0 0 0 0
Lizard 1 1 1 0 0 0
Tiger 1 1 1 1 0 0
Gorilla 1 1 1 1 1 0
Human 1 1 1 1 1 1

For the data table shown above, a 1 indicated that the trait is present and a 0 indicates that the trait is absent.
Which of the following statements represents an accurate interpretation of the data?

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. All organisms in the table share all of the derived characteristics.

  2. Only humans and gorillas share all of the derived characteristics.

  3. Because it shares none of the derived characteristics, lampreys constitute an out-group.

  4. Because it shares just one of the derived characteristics, sharks can be considered an internal branch of the phylogenetic tree.

Show answer
Correct Option: C
Explanation:

From the table, it is seen that except Lamprey, all organisms share derived characteristics. Because it shares none of the derived characteristics, it constitute an out-group. Humans and gorillas share most of the derived characteristics. Because it shares just one of the derived characteristics, sharks can be considered an outer most branch of the phylogenetic tree.

Thus, the correct answer is 'Because it shares none of the derived characteristics, lampreys constitute an out-group.'

Study of ticks and mites is called

biology biodiversity and classification animal classification and its benefits criteria for new system of classification five kingdoms of living organisms

  1. Acarology

  2. Entomology

  3. Malacology

  4. Carcinology

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Correct Option: A
Explanation:

Ticks and mites are the groups of organisms that belong to the family Arthropoda and subclass Acarina. So the study of these Acarina organisms is called as acarology.

Entomology as the name indicates it is the study of insects.
Malacology is the study of Molluscs that belongs to zoology
Carcinology is the branch of science that deals with the study of organisms like crayfish etc., that belongs to crustaceans. Thus, the correct answer is option A.