Question:
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Answer:
Classification systems as proposed by Linnaeus use a hierarchical system in which organisms are placed into groups, at different levels, according to the features they share. These groups or levels are(from top to bottom):
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
Species is the lowest level in which group, we find the highest level of similarities and All members of a species are capable of interbreeding.
✍ How to memorise classification levels? King ➤ Phil-nnaeus ➤ Classed ➤ Ordinary ➤ Families as ➤ Generous and ➤ Special Kingdom ➤ Phylum ➤ Class ➤ Order ➤ Family ➤ Genus ➤ Species
Diversity in Living Organisms
Q 1.
Name a reptile which has four chambered heart.
Q 2.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 3.
Give examples of Arthropod animals.
Q 4.
Give three examples of Protochordata animals.
Q 5.
Write two important characteristics of sponges ?
Q 6.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 7.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 8.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 9.
Why bryophytes are called the amphibians of the plant kingdom?
Q 10.
Differentiate between Annelida and Nematode.
Q 11.
How is a body of Arthropods segmented?
Q 12.
Who introduced the system of scientific nomenclature of organisms?
Q 13.
Do Protozoans have eyes?
Q 14.
What type of circulatory system do Molluscs have?
Q 17.
In which kingdom you will place an organism which is multicellular, eukaryotic, non-green heterotroph or saprophytic, lacks chlorophyll and has an absorptive mode of nutrition?
Q 18.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 19.
List important characteristics (at least three) of bryophytes.
Q 20.
Give two examples of Gymnosperms.
Q 21.
Which animal phylum is commonly called as flatworms?
Q 22.
What is a notochord? What does it do?
Q 23.
Give examples of organisms which belong to Phylum Protochordata.
Q 24.
List three important characteristics of Phylum Protochordata.
Q 25.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 26.
Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?
Q 27.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 28.
Algae belongs to which division of Plantae?
Q 29.
Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.
Q 30.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 31.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 32.
No scales on skin, mucus glands on skin, three chambered heart, respiration through gills, lungs and skin, oviparous, live on land and in water. Name the group of these vertebrates.
Q 33.
Based on evolution, primarily how organisms are categorised?
Q 34.
Which organisms are called primitive and how are they different from the so-called advanced organisms?
Q 35.
Name the organisms which are outside the classification.
Q 36.
According to the five-kingdom system, which kingdom contains organisms whose structure is composed of prokaryotic cells?
Q 37.
In how many Phyla, the animal kingdom is divided into?
Q 38.
Name the first animals (phylum) that have a true body cavity.
Q 39.
How do annelid animals differ from arthropods?
Q 40.
Name the phylum to which Start fish and Sea urchin belong to?
Q 41.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 42.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 43.
Eichler classified the plant kingdom into two sub-kingdoms. Name the two sub kingdoms.
Q 44.
Pines and Deodar belong to which group of Plants?
Q 45.
What do you mean by biodiversity?
Q 47.
Who is known as the father of taxonomy?
Q 48.
Give three examples of the range of variations that you see in lifeforms around you.
Q 49.
What is the primary reason for such a huge diversity we find in animals and plants?
Q 50.
What is the primary characteristic on which the first division of organisms is made?
