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.
Why bryophytes are called the amphibians of the plant kingdom?
Q 3.
Give examples of Arthropod animals.
Q 4.
Will advanced organisms be the same as complex organisms? Why?
Q 5.
Which division among plants has the simplest organisms?
Q 6.
List important characteristics (at least three) of bryophytes.
Q 7.
How Angiosperms are divided further?
Q 8.
Which animal phylum is considered to be first triploblastic animals?
Q 9.
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 10.
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 11.
Give an example of mammal that can fly.
Q 12.
Based on evolution, primarily how organisms are categorised?
Q 13.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
Q 14.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 15.
What is Symbiotic? Give an example of organisms which exhibit this relationship.
Q 16.
On what basis plants are divided into two sub-kingdoms?
Q 17.
Define Cryptograms.
Q 18.
Write the differences between monocots and dicots.
Q 20.
How do poriferan animals differ from coelenterate animals?
Q 21.
How is locomotion brought in animals belonging to Mollusca phylum?
Q 22.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 23.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 24.
Algae belongs to which division of Plantae?
Q 25.
Identify the division of Plantae having following characteristics:
i. Seeds not enclosed within fruit.
ii. Flowers represented as cones (unisexual)
iii. Ovules not located in ovary.
Q 26.
What is the main basis of differentiation between vertebrates and non-vertebrates?
Q 27.
According to the five-kingdom system, which kingdom contains organisms whose structure is composed of prokaryotic cells?
Q 28.
In how many Phyla, the animal kingdom is divided into?
Q 29.
Which animal phylum is commonly called as flatworms?
Q 30.
Which phylum is commonly called roundworms or pinworms?
Q 31.
Give examples of animals belong to Nematoda.
Q 32.
Name the first animals (phylum) that have a true body cavity.
Q 33.
How is a body of Arthropods segmented?
Q 34.
List three important characteristics of Phylum Protochordata.
Q 35.
In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Q 36.
In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?
Q 37.
Who introduced the system of scientific nomenclature of organisms?
Q 38.
Pines and Deodar belong to which group of Plants?
Q 39.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 40.
Give three examples of Molluscs
Q 41.
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 42.
Give examples of egg laying mammals
Q 43.
What is the primary reason for such a huge diversity we find in animals and plants?
Q 44.
On what bases are plants and animals put into different categories?
Q 45.
Name five countries that lie in the region of megadiversity.
Q 47.
Why are Thallophytes called non-embryonic plants?
Q 48.
How are pteridophytes different from the phanerogams?
Q 49.
What are naked-seeded plants are called?
Q 50.
Give two examples of Gymnosperms.
