Question:
What are the advantages of classification?
Answer:
Following are the advantages of classification:
- Classification helps us identify the living organisms easily.
- It makes a study of such a wide variety of bio-life in a systematic manner.
- It helps us learning different plants and animals, similarities and dissimilarities among them.
- Enables us understand how complex organisms evolve over the time.
- Classification helps us understand the inter-relationships among different groups.
- It forms the basis of other branches of bio-sciences like bio-geography, environmental biology, ecology etc.
- It also provides a systematic way to identify known and unknown organisms.
- Classification systems are adapted internationally. This aids communication between scientists.
Diversity in Living Organisms
Q 1.
Give examples of Arthropod animals.
Q 2.
On what bases are plants and animals put into different categories?
Q 3.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 4.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 5.
Amar, Ujala and Anara wrote the scientic name of mango as follows. Who wrote it correctly.
Amar - Mangifera Indica
Ujala - Mangifera indica
Anara - mangifera indica
Q 6.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 7.
Which animal phylum is commonly called as flatworms?
Q 8.
Name the kingdom which includes the simplest form of eukaryotes.
Q 9.
Minimal body design, have holes which lead to canal system that helps in circulating water, marine habitat. Which division of Animalia it refers to?
Q 10.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 11.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 13.
List important characteristics (at least three) of bryophytes.
Q 14.
What are the uses of bryophytes?
Q 15.
Define Cryptograms.
Q 16.
Write two important characteristics of sponges ?
Q 17.
What are four main features of phylum coelenterates?
Q 18.
Which phylum is commonly called roundworms or pinworms?
Q 19.
Name a parasitic disease caused by members of Nematoda.
Q 20.
What kind of circulatory system is found in animals from Mollusca phylum?
Q 21.
How is locomotion brought in animals belonging to Mollusca phylum?
Q 22.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 23.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 24.
Give two examples of Bryophyta plants?
Q 25.
Give three examples of Protochordata animals.
Q 26.
Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?
Q 27.
What do you mean by biodiversity?
Q 28.
What are the advantages of classification?
Q 29.
Give three examples of the range of variations that you see in lifeforms around you.
Q 30.
Name five countries that lie in the region of megadiversity.
Q 31.
Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?
Q 32.
Explain the basis for grouping organisms into five kingdoms.
Q 33.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 34.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 35.
Why are Thallophytes called non-embryonic plants?
Q 36.
Why bryophytes are called the amphibians of the plant kingdom?
Q 37.
Give examples of bryophytes.
Q 38.
How are pteridophytes different from the phanerogams?
Q 39.
How Phanerogams are divided further chiefly?
Q 40.
How do gymnosperms and angiosperms differ from each other?
Q 41.
Write the differences between monocots and dicots.
Q 42.
In how many Phyla, the animal kingdom is divided into?
Q 43.
Identify the phylum having following characteristics:
Q 44.
How do poriferan animals differ from coelenterate animals?
Q 45.
What is the type of circulatory system present in Arthropods?
Q 46.
Give examples of animals that belong to Phylum Mollusca.
Q 47.
List three important characteristics of Phylum Protochordata.
Q 48.
Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Q 49.
Who introduced the system of scientific nomenclature of organisms?
Q 50.
What is the primary characteristic on which the first division of organisms is made?
