Question:
Which do you think is a more basic characteristic for classifying organisms?(a) the place where they live.(b) the kind of cells they are made of. Why?
Answer:
Option (b) the kind of cells they are made of, is the more basic characteristic for classifying organisms. It is for the following reasons:
- Classifying organisms based on habitat is misleading. Apart from common habitat, there are no other common features among them. e.g. Lion and Rabbit both live on land but they differ from each other a lot. Further, sub-classification is not possible.
- Cells are the functional and structural unit of life. Primarily we can differentiate organisms are unicellular and multicellular. Further sub-classification or logical sequence is possible based on cell types, its complexity etc.
Diversity in Living Organisms
Q 1.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 2.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 3.
Why do we classify organisms?
Q 4.
How Phanerogams are divided further chiefly?
Q 5.
Give examples of organisms which belong to Phylum Protochordata.
Q 6.
Why are Bats and whales classified as mammals?
Q 7.
Filarial worms, (Ascaris)round worms, (Wuchereria)pin worms belong to which group of animalia?
Q 8.
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 9.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 10.
Who wrote the book
The Origin of Species?
Q 11.
Write the differences between monocots and dicots.
Q 12.
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 13.
Give examples of egg laying mammals
Q 14.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 15.
What are naked-seeded plants are called?
Q 16.
Which animal phylum is commonly called as flatworms?
Q 17.
Write important features about Phylum Platyhelminthes.
Q 18.
Name the largest group (phylum) of animals.
Q 19.
Name the kingdom which includes the simplest form of eukaryotes.
Q 20.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 21.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 22.
Which is the largest group of animals?
Q 23.
Give three examples of animals belong to Echinodermata
Q 25.
Give examples of animals belong to Nematoda.
Q 26.
Name a parasitic disease caused by members of Nematoda.
Q 27.
Name the phylum to which Start fish and Sea urchin belong to?
Q 28.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 29.
Write the name of the group of plants, which produces seeds, but not fruits.
Q 30.
Give three examples of Molluscs
Q 31.
Give three examples of Protochordata animals.
Q 32.
Name a reptile which has four chambered heart.
Q 34.
In the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?
Q 35.
On what basis plants are divided into two sub-kingdoms?
Q 36.
How do gymnosperms and angiosperms differ from each other?
Q 37.
Give examples of Arthropod animals.
Q 38.
What is the type of circulatory system present in Arthropods?
Q 39.
How do annelid animals differ from arthropods?
Q 40.
Give examples of animals that belong to Phylum Mollusca.
Q 41.
What is a notochord? What does it do?
Q 42.
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 43.
Algae belongs to which division of Plantae?
Q 44.
Name the two groups of Plantae that are commonly called phanerogams.
Q 45.
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 46.
Identify the Animalia group having following features:
Q 47.
Give an example of mammal that can fly.
Q 48.
Which do you think is a more basic characteristic for classifying organisms?(a) the place where they live.(b) the kind of cells they are made of. Why?
Q 49.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 50.
In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.
